Here's a quick video showing how this module works and also how to set up a Free pager block with Views: http://www.youtube.com/watch?v=lDDbtzmthNQ&feature=youtu.be
A note on performance: Free Pager iterates through all view results, to find a match on the current URL. If your Free Pager views have a lot of results (say 100+), this will have serious effects on page load times. It can partly be helped by standard Views caching, but not completely.
Free Pager has just got a new co-maintainer, so hopefully the performance issues can be solved soon.
Related modules
See the comparison of previous/next modules.
Quick comparison: Free pager is (afaik) the only Drupal module that allows putting pagers on basically anything – not only content. If you want to paginate content, compare with other modules.
README.txt
This module allows you to use Views to create simple forward/next pagers. It
provides a new display, Pager block, which will create a block with pager for
items listed in the view.
This pager module is a bit more difficult to wrap your head around than most
pager modules. In return, you get much more flexibility in what you can put
pagers on, and how the pagers should work. The basic concept is this: