OK, let's work through this together. We're starting with 356 and we're going to multiply it by 5, which means we add 356 to itself 5 times.
Step 1: 0 + 356 = 356
Step 2: 356 + 356 = 712
Step 3: 712 + 356 = 1068
Step 4: 1068 + 356 = 1424
Step 5: 1424 + 356 = 1780

So, 356*5 = 1780