It’s a 4-digit 7 segment display… there’s really not much to figure out beyond that. If you’re using Arduino, there’s a 7 segment display library that will drive it directly (you’ll just have to check whether the pinout is the same). There’s also dedicated 7-segment drivers that use up fewer pins of your uC but obviously add more floorspace. SFE has one for 8 digits, but 4-digit and single digit are easily found as well, or you could use a shift register, etc.
Is there any problem in particular that you’re running into?