Navigate to [https://www.office.com/](https://www.office.com/)

Enter your email and write in the code
Click the "Enter your phone number" field.  Type in your phone number.
Click "Text"
Click the "Enter your verification code" field.  Type in the code texted to your phone.

Click the "Enter your phone number" field.  Type in your phone number.

Click the "Enter your verification code" field.  Type in the code texted to your phone.

Reset Office account password through phone verification