Let's roll up our sleeves and solve this. We have 510 and we're going to multiply it by 5, essentially adding 510 to itself 5 times.
Step 1: 0 + 510 = 510
Step 2: 510 + 510 = 1020
Step 3: 1020 + 510 = 1530
Step 4: 1530 + 510 = 2040
Step 5: 2040 + 510 = 2550

So, 510*5 = 2550