How do you print to the printer of another Internet user at another location? -

I want to have our office manager working from home with Internet connection through an ISP to print Word, Excel, and e-mail documents on printers at other locations. The other locations will also be connected to the Internet via an ISP. All users will be connected to the Internet as single users (no networks). It would be preferred if the printers could be connected directly to the Internet via cable modem, but connecting the printer through the users PC would also be acceptable.

you set up a remote printer on a network