The steps of opening the real estate Tik Tok number and binding the business license are as follows:

1. Register an account on Tik Tok and log in to the account.

2. Click the "My" icon in the lower right corner of the page to enter the personal center page.

3. On the personal center page, click the "three points" icon in the upper right corner to enter the settings page.

4. In the settings page, select the "Account and Security" option.

5. On the Account and Security page, select the Binding Management option.

6. In the binding management page, select the "Enterprise Authentication" option.

7. On the Enterprise Certification page, select the Start Certification option.

8. Fill in the enterprise information as prompted and upload the business license.

9. After approval, you can open a real estate-related account in Tik Tok and check the business license information in the account settings.