First, ensure you have an authenticator app installed on your phone (such as Google Authenticator, Authy, or a similar app).
Once your app is ready, proceed through the password reset flow until you reach the MFA setup screen. Open your authenticator app and use it to scan the QR code displayed on the screen.
If your app does not support QR scanning, click "Unable to Scan" instead. This will display a text code you can enter manually into your authenticator app.
After completing either step above, your authenticator app will begin generating a six-digit code that refreshes every 30 seconds. Enter the current code into the field on screen and click Submit. Your account is now set up, and you'll use this code each time you log in.