How do you transfer my domain from Google to O365, ie O365 will now host and bill me for domain name as the registrar

I have done this in my Gsuite space;

Learn how to transfer Google Domains to another service

1. Sign in to Google Domains.
2. Click the name of the domain you want to transfer.
3. In the top left, click Menu   Registration settings.
4. Under "Domain lock," make sure your domain is unlocked.
5. To the right of "Transfer out," click Get authorization code.
6. Select To a different domain registrar and click Continue, then sign in if necessary.
7. Copy the authorization code and provide it to your new registrar.

Now I see nowhere to put my auth code to physically transfer this domain name. Please provide a step by step.