OK, let's crack this. We're given 165 and our task is to multiply it by 28. Essentially, we'll be adding 165 to itself 28 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

So, 165*28 = 4620