Let's get this math done. We have 911 and we're going to multiply it by 42. This is the same as taking 911 and adding it to itself 42 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
Step 10: 8199 + 911 = 9110
Step 11: 9110 + 911 = 10021
Step 12: 10021 + 911 = 10932
Step 13: 10932 + 911 = 11843
Step 14: 11843 + 911 = 12754
Step 15: 12754 + 911 = 13665
Step 16: 13665 + 911 = 14576
Step 17: 14576 + 911 = 15487
Step 18: 15487 + 911 = 16398
Step 19: 16398 + 911 = 17309
Step 20: 17309 + 911 = 18220
Step 21: 18220 + 911 = 19131
Step 22: 19131 + 911 = 20042
Step 23: 20042 + 911 = 20953
Step 24: 20953 + 911 = 21864
Step 25: 21864 + 911 = 22775
Step 26: 22775 + 911 = 23686
Step 27: 23686 + 911 = 24597
Step 28: 24597 + 911 = 25508
Step 29: 25508 + 911 = 26419
Step 30: 26419 + 911 = 27330
Step 31: 27330 + 911 = 28241
Step 32: 28241 + 911 = 29152
Step 33: 29152 + 911 = 30063
Step 34: 30063 + 911 = 30974
Step 35: 30974 + 911 = 31885
Step 36: 31885 + 911 = 32796
Step 37: 32796 + 911 = 33707
Step 38: 33707 + 911 = 34618
Step 39: 34618 + 911 = 35529
Step 40: 35529 + 911 = 36440
Step 41: 36440 + 911 = 37351
Step 42: 37351 + 911 = 38262

So, 911*42 = 38262