Alright, let's solve this math problem step by step. First, we have the number 415. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 27. So, we're going to take the number 415 and add it to itself 27 times.
Step 1: 0 + 415 = 415
Step 2: 415 + 415 = 830
Step 3: 830 + 415 = 1245
Step 4: 1245 + 415 = 1660
Step 5: 1660 + 415 = 2075
Step 6: 2075 + 415 = 2490
Step 7: 2490 + 415 = 2905
Step 8: 2905 + 415 = 3320
Step 9: 3320 + 415 = 3735
Step 10: 3735 + 415 = 4150
Step 11: 4150 + 415 = 4565
Step 12: 4565 + 415 = 4980
Step 13: 4980 + 415 = 5395
Step 14: 5395 + 415 = 5810
Step 15: 5810 + 415 = 6225
Step 16: 6225 + 415 = 6640
Step 17: 6640 + 415 = 7055
Step 18: 7055 + 415 = 7470
Step 19: 7470 + 415 = 7885
Step 20: 7885 + 415 = 8300
Step 21: 8300 + 415 = 8715
Step 22: 8715 + 415 = 9130
Step 23: 9130 + 415 = 9545
Step 24: 9545 + 415 = 9960
Step 25: 9960 + 415 = 10375
Step 26: 10375 + 415 = 10790
Step 27: 10790 + 415 = 11205

So, 415*27 = 11205