OK, let's work through this together. We're starting with 476 and we're going to multiply it by 3, which means we add 476 to itself 3 times.
Step 1: 0 + 476 = 476
Step 2: 476 + 476 = 952
Step 3: 952 + 476 = 1428

So, 476*3 = 1428