OK, let's work through this together. We're starting with 485 and we're going to multiply it by 5, which means we add 485 to itself 5 times.
Step 1: 0 + 485 = 485
Step 2: 485 + 485 = 970
Step 3: 970 + 485 = 1455
Step 4: 1455 + 485 = 1940
Step 5: 1940 + 485 = 2425

So, 485*5 = 2425