OK, let's work through this together. We're starting with 495 and we're going to multiply it by 4, which means we add 495 to itself 4 times.
Step 1: 0 + 495 = 495
Step 2: 495 + 495 = 990
Step 3: 990 + 495 = 1485
Step 4: 1485 + 495 = 1980

So, 495*4 = 1980