OK, let's crack this. We're given 498 and our task is to multiply it by 3. Essentially, we'll be adding 498 to itself 3 times.
Step 1: 0 + 498 = 498
Step 2: 498 + 498 = 996
Step 3: 996 + 498 = 1494

So, 498*3 = 1494