OK, let's work through this together. We're starting with 166 and we're going to multiply it by 28, which means we add 166 to itself 28 times.
Step 1: 0 + 166 = 166
Step 2: 166 + 166 = 332
Step 3: 332 + 166 = 498
Step 4: 498 + 166 = 664
Step 5: 664 + 166 = 830
Step 6: 830 + 166 = 996
Step 7: 996 + 166 = 1162
Step 8: 1162 + 166 = 1328
Step 9: 1328 + 166 = 1494
Step 10: 1494 + 166 = 1660
Step 11: 1660 + 166 = 1826
Step 12: 1826 + 166 = 1992
Step 13: 1992 + 166 = 2158
Step 14: 2158 + 166 = 2324
Step 15: 2324 + 166 = 2490
Step 16: 2490 + 166 = 2656
Step 17: 2656 + 166 = 2822
Step 18: 2822 + 166 = 2988
Step 19: 2988 + 166 = 3154
Step 20: 3154 + 166 = 3320
Step 21: 3320 + 166 = 3486
Step 22: 3486 + 166 = 3652
Step 23: 3652 + 166 = 3818
Step 24: 3818 + 166 = 3984
Step 25: 3984 + 166 = 4150
Step 26: 4150 + 166 = 4316
Step 27: 4316 + 166 = 4482
Step 28: 4482 + 166 = 4648

So, 166*28 = 4648