@Anantashayana Hegde
Thank you for your post!
When it comes to the Quickstart: Create a new tenant in Azure Active Directory, I understand that there are some names specified within step 7 that could cause some confusion when you're trying to create a new tenant in Azure Active Directory. Since this is a QuickStart, the purpose of the article is to show users how to get to the Azure portal, Azure Active Directory, and learn how to create a basic tenant for their organization. The specific names specified in the doc should be for demonstration purposes, since the article also shows how to delete the "Contoso" tenant if you aren't going to continue to use it.
I went ahead and created a Pull Request so the documentation author can look into updating this portion of the QuickStart. For more info - Microsoft Learn documentation contributor guide overview.
I hope this helps!
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.