To start a business in Dubai, you will need to follow these steps:

Choose a business activity. You need to decide what type of business you want to start. The Dubai Department of Economic Development (DED) has a list of over 2,000 approved business activities.
Choose a business structure. There are several different types of business structures available in Dubai, including limited liability companies (LLCs), sole proprietorships, and civil companies. You need to choose the structure that is right for your business.
Register your trade name. You need to register a trade name for your business with the DED. The trade name should be unique and should not be offensive.
Apply for a business license. You need to apply for a business license with the DED. The license application will require you to submit various documents, such as your trade name registration certificate, your business structure documents, and your passport copy.
Obtain other necessary permits and licenses. Depending on the type of business you are starting, you may also need to obtain other permits and licenses from other government agencies. For example, if you are starting a food and beverage business, you will need to obtain a license from the Dubai Municipality.
Open a bank account. You need to open a bank account for your business. You can open a bank account in Dubai even if you are not a resident of the UAE.
Lease office space. You need to lease office space for your business. There are many different office spaces available in Dubai, so you can choose the one that is right for your needs and budget.
Hire employees. If you need to hire employees, you will need to obtain work visas for them. You can obtain work visas from the Dubai Department of Naturalization and Residency.
Start your business! Once you have completed all of the above steps, you can start your business!
Here are some additional tips for starting a business in Dubai:

Get professional advice. It is a good idea to get professional advice from a lawyer or accountant when starting a business in Dubai. They can help you to choose the right business structure, prepare your license application, and comply with all applicable laws and regulations.
Do your research. It is important to do your research before starting a business in Dubai. This includes researching the market, your competition, and the regulatory environment.
Be patient. The process of starting a business in Dubai can be time-consuming. It is important to be patient and to follow all of the required steps.
Starting a business in Dubai can be a rewarding experience. Dubai is a vibrant and growing economy with many opportunities for businesses. By following the steps above, you can increase your chances of success.