There are achievements that require the player to do some action a certain number of times to be unlocked, for example: kill 100 enemies, jump 50 times, collect 1000 coins, etc. Fortunately, Steam has a stats system that helps track the player's progress and even unlocks achievements automatically when a certain number (defined by you) is reached. For this to work, you must interact with a stat rather than directly interacting with the achievement.