Once you get a Partner visa, you'll usually start with a temporary Partner visa (Subclass 820). This visa lets you live, work, study, travel, and use Australia's public health care system. It stays valid until you get the permanent partner visa (Subclass 801).
After two years, you can apply for the Subclass 801 visa. This process is similar to when you applied for the Subclass 820 visa. You need to show the Australian government that your relationship is still strong from the time you got the Subclass 820 visa.
With the Subclass 801 visa, you get a travel permit for 5 years. This means you can travel in and out of Australia for up to 5 years. If you want to keep traveling internationally after 5 years, you'll need to apply for a Resident Return Visa (subclass 155). You'll have to renew this visa every 5 years.
After spending four years on the Subclass 801 visa, you can choose to apply for Australian citizenship.