How to connect this to a breadboard?
The best way is to get a pin header and solder it into place. 

The pin headers look something like this:



The standard distance is 2.54 mm, which should be same as the distance between holes on the breadboard and on the PCBs. These pin headers are usually easy to break into smaller sections, so you can buy a bigger one if the exact size is unavailable.

The exact type you want would be 2.54 mm pitch, single row straight male pin header.