Alright, let's solve this math problem step by step. First, we have the number 663. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 3. So, we're going to take the number 663 and add it to itself 3 times.
Step 1: 0 + 663 = 663
Step 2: 663 + 663 = 1326
Step 3: 1326 + 663 = 1989

So, 663*3 = 1989