Alright, let's solve this math problem step by step. First, we have the number 66. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 67. So, we're going to take the number 66 and add it to itself 67 times.
Step 1: 0 + 66 = 66
Step 2: 66 + 66 = 132
Step 3: 132 + 66 = 198
Step 4: 198 + 66 = 264
Step 5: 264 + 66 = 330
Step 6: 330 + 66 = 396
Step 7: 396 + 66 = 462
Step 8: 462 + 66 = 528
Step 9: 528 + 66 = 594
Step 10: 594 + 66 = 660
Step 11: 660 + 66 = 726
Step 12: 726 + 66 = 792
Step 13: 792 + 66 = 858
Step 14: 858 + 66 = 924
Step 15: 924 + 66 = 990
Step 16: 990 + 66 = 1056
Step 17: 1056 + 66 = 1122
Step 18: 1122 + 66 = 1188
Step 19: 1188 + 66 = 1254
Step 20: 1254 + 66 = 1320
Step 21: 1320 + 66 = 1386
Step 22: 1386 + 66 = 1452
Step 23: 1452 + 66 = 1518
Step 24: 1518 + 66 = 1584
Step 25: 1584 + 66 = 1650
Step 26: 1650 + 66 = 1716
Step 27: 1716 + 66 = 1782
Step 28: 1782 + 66 = 1848
Step 29: 1848 + 66 = 1914
Step 30: 1914 + 66 = 1980
Step 31: 1980 + 66 = 2046
Step 32: 2046 + 66 = 2112
Step 33: 2112 + 66 = 2178
Step 34: 2178 + 66 = 2244
Step 35: 2244 + 66 = 2310
Step 36: 2310 + 66 = 2376
Step 37: 2376 + 66 = 2442
Step 38: 2442 + 66 = 2508
Step 39: 2508 + 66 = 2574
Step 40: 2574 + 66 = 2640
Step 41: 2640 + 66 = 2706
Step 42: 2706 + 66 = 2772
Step 43: 2772 + 66 = 2838
Step 44: 2838 + 66 = 2904
Step 45: 2904 + 66 = 2970
Step 46: 2970 + 66 = 3036
Step 47: 3036 + 66 = 3102
Step 48: 3102 + 66 = 3168
Step 49: 3168 + 66 = 3234
Step 50: 3234 + 66 = 3300
Step 51: 3300 + 66 = 3366
Step 52: 3366 + 66 = 3432
Step 53: 3432 + 66 = 3498
Step 54: 3498 + 66 = 3564
Step 55: 3564 + 66 = 3630
Step 56: 3630 + 66 = 3696
Step 57: 3696 + 66 = 3762
Step 58: 3762 + 66 = 3828
Step 59: 3828 + 66 = 3894
Step 60: 3894 + 66 = 3960
Step 61: 3960 + 66 = 4026
Step 62: 4026 + 66 = 4092
Step 63: 4092 + 66 = 4158
Step 64: 4158 + 66 = 4224
Step 65: 4224 + 66 = 4290
Step 66: 4290 + 66 = 4356
Step 67: 4356 + 66 = 4422

So, 66*67 = 4422