Let's roll up our sleeves and solve this. We have 508 and we're going to multiply it by 3, essentially adding 508 to itself 3 times.
Step 1: 0 + 508 = 508
Step 2: 508 + 508 = 1016
Step 3: 1016 + 508 = 1524

So, 508*3 = 1524