1. On the login page, find options such as "log in with another account" or "log in with a third party" and select Google account to log in.

2. Click the Google icon to jump to the Google account login page. On the login page, enter your Google account and password, and then click the Login button.

3. Authorize the electronic tax bureau to access Google account information. On the Google account login page, there will be an authorization option, and you need to confirm the authorization of the electronic tax bureau to access Google account information.

4. After successful login, you can perform related operations in the electronic tax bureau, such as modifying and saving the taxpayer identification number of the electronic tax bureau.