Alright, let's solve this math problem step by step. First, we have the number 369. 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 369 and add it to itself 9 times.
Step 1: 0 + 369 = 369
Step 2: 369 + 369 = 738
Step 3: 738 + 369 = 1107
Step 4: 1107 + 369 = 1476
Step 5: 1476 + 369 = 1845
Step 6: 1845 + 369 = 2214
Step 7: 2214 + 369 = 2583
Step 8: 2583 + 369 = 2952
Step 9: 2952 + 369 = 3321

So, 369*9 = 3321