Alright, let's solve this math problem step by step. First, we have the number 511. 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 511 and add it to itself 3 times.
Step 1: 0 + 511 = 511
Step 2: 511 + 511 = 1022
Step 3: 1022 + 511 = 1533

So, 511*3 = 1533