How To connect Exchange online through powershell if MFA is enabled

 You have to first download "Microsoft Exchange Online Power shell Module" from your exchange admin center portal (https://outlook.office.com/ecp/) 

then you have to open the "Microsoft Exchange Online Power shell Module" and you should get the window like below.

Then you have to use the command (Connect-EXOPSSession -UserPrincipalName AdminUser@domain.com) in Microsoft Exchange Online Power shell Module.

then it should pop up for the credentials and also for the second factor authentication.

Get Office 365 users with a specific license

First we have to connect MSOLService through powershell.

Connect-MsolService

Then get the list of available licenses with the following command.

Get-MsolAccountSku

then we can use the following command to Get the users with a specific license

Get-MsolUser -MaxResults 200000 | Where-Object {($_.licenses).AccountSkuId -match "p:ems"} >c:\pathc\EMSUsers.CSV