If you have a dog how often do you feed your dog ?

Depends upon the dog. Some dogs will eat until they burst, some will eat just what they need to feel satiated. With a glutton, you feed them a couple of times a day (half a daily ration each time), with the more moderate eater, give them their daily ration and they will eat it all day long. Provide water so they have a bowl of water at all times.