Pasword self service reset in Azure

Hi Experts

My client is currently running a hybrid organization Azure- OnPrem , and they are interconnected via Express Route.

They want to setup self-service password reset, and the process is pretty straightforward, however we need to present the client, how Azure password reset works, and all steps involved, either in a power point presentation or Visio.

I am engaging you, to answer following questions.

Define the process of self service password reset In Azure? I meant, when since the user go to browser, and enter  https://passwordreset.microsoftonline.com

How many steps are involved from a user prospective and in background? Please, elaborate each answer

What is the flow of changing password from  https://passwordreset.microsoftonline.com ?

I am not looking for articles in how to setup password write back in Azure, and define the security questions or authentication methods. Please, provide as much details as you can, and not a simple copy paste from Azure docs

Thanks in advance