input display name and email address
click sign-in
put password, then click on 'setup manually' or something similar to that depends on different version
Enjoy the clean and simple setup procedure and all your mail, note, calendar apps are configured.
This is particularly useful if you have a 'local' principal server (IA?). Normally, exchange 365 will offer you the login and so on, but in certain cases, it will auto discover the actual server and let you auth directly through it instead of going to the outlook login page, then login using single-sign-on.