There is a need to access the Office account online for your convenience. There are certain steps which you need to follow to access the Office account online, these steps are as follows:

1. First of all, you have to open any of the app from your MS Office program or you can visit office.com/setup .
2. After this, tap on the “Help” button from the app’s window.
3. Select the “Activate product” option.
4. Just select the option “Activate by using the Internet” option.
5. Select the country from the drop-down menu.
6. Tap on the “Ok” option to complete the registration process. 
7. You will receive the confirmation when the activation is completed.
8. Tap on the “OK” to register the product.
9. After this Microsoft will ask you to complete a short form that includes the credentials.
10. Just submit the registration form to complete the registration process. 

Also If you want to know about how to transfer Microsoft Office setup to a new PC, then visit office.com/setup .