Alright, let's solve this math problem step by step. First, we have the number 181. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 4. So, we're going to take the number 181 and add it to itself 4 times.
Step 1: 0 + 181 = 181
Step 2: 181 + 181 = 362
Step 3: 362 + 181 = 543
Step 4: 543 + 181 = 724

So, 181*4 = 724