Alright, let's solve this math problem step by step. First, we have the number 742. 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 742 and add it to itself 3 times.
Step 1: 0 + 742 = 742
Step 2: 742 + 742 = 1484
Step 3: 1484 + 742 = 2226

So, 742*3 = 2226