Alright, let's solve this math problem step by step. First, we have the number 911. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 9. So, we're going to take the number 911 and add it to itself 9 times.
Step 1: 0 + 911 = 911
Step 2: 911 + 911 = 1822
Step 3: 1822 + 911 = 2733
Step 4: 2733 + 911 = 3644
Step 5: 3644 + 911 = 4555
Step 6: 4555 + 911 = 5466
Step 7: 5466 + 911 = 6377
Step 8: 6377 + 911 = 7288
Step 9: 7288 + 911 = 8199

So, 911*9 = 8199