Let's get this math done. We have 165 and we're going to multiply it by 42. This is the same as taking 165 and adding it to itself 42 times.
Step 1: 0 + 165 = 165
Step 2: 165 + 165 = 330
Step 3: 330 + 165 = 495
Step 4: 495 + 165 = 660
Step 5: 660 + 165 = 825
Step 6: 825 + 165 = 990
Step 7: 990 + 165 = 1155
Step 8: 1155 + 165 = 1320
Step 9: 1320 + 165 = 1485
Step 10: 1485 + 165 = 1650
Step 11: 1650 + 165 = 1815
Step 12: 1815 + 165 = 1980
Step 13: 1980 + 165 = 2145
Step 14: 2145 + 165 = 2310
Step 15: 2310 + 165 = 2475
Step 16: 2475 + 165 = 2640
Step 17: 2640 + 165 = 2805
Step 18: 2805 + 165 = 2970
Step 19: 2970 + 165 = 3135
Step 20: 3135 + 165 = 3300
Step 21: 3300 + 165 = 3465
Step 22: 3465 + 165 = 3630
Step 23: 3630 + 165 = 3795
Step 24: 3795 + 165 = 3960
Step 25: 3960 + 165 = 4125
Step 26: 4125 + 165 = 4290
Step 27: 4290 + 165 = 4455
Step 28: 4455 + 165 = 4620
Step 29: 4620 + 165 = 4785
Step 30: 4785 + 165 = 4950
Step 31: 4950 + 165 = 5115
Step 32: 5115 + 165 = 5280
Step 33: 5280 + 165 = 5445
Step 34: 5445 + 165 = 5610
Step 35: 5610 + 165 = 5775
Step 36: 5775 + 165 = 5940
Step 37: 5940 + 165 = 6105
Step 38: 6105 + 165 = 6270
Step 39: 6270 + 165 = 6435
Step 40: 6435 + 165 = 6600
Step 41: 6600 + 165 = 6765
Step 42: 6765 + 165 = 6930

So, 165*42 = 6930