Depends -- usually about 2-3 times a day.

A good question was asked: what do you feed your dog? The better the food, the less poo there is. Why? Because the cheaper "supermarket foods" are loaded with fillers and low quality meats like chicken by-products (such a beaks, eyes, claws, etc) they eat more because they don't get the necessary nutrition needed to keep them full. Think of when you go to McDonalds. A large fry and double cheesburger fills you, but in two hours you're hungry again. Now think if you arte a nice chicken breast, corn, broccoli, carrots.... you'll be full and not hungry for several hours. Also think what happens in your own bathroom a few hours after McDonals vs a healthy meal.

Better food = better nutrition = less eaten per day = less poops per day.