OK, let's work through this together. We're starting with 486 and we're going to multiply it by 5, which means we add 486 to itself 5 times.
Step 1: 0 + 486 = 486
Step 2: 486 + 486 = 972
Step 3: 972 + 486 = 1458
Step 4: 1458 + 486 = 1944
Step 5: 1944 + 486 = 2430

So, 486*5 = 2430