Let's get this math done. We have 908 and we're going to multiply it by 5. This is the same as taking 908 and adding it to itself 5 times.
Step 1: 0 + 908 = 908
Step 2: 908 + 908 = 1816
Step 3: 1816 + 908 = 2724
Step 4: 2724 + 908 = 3632
Step 5: 3632 + 908 = 4540

So, 908*5 = 4540