Let's roll up our sleeves and solve this. We have 396 and we're going to multiply it by 159, essentially adding 396 to itself 159 times.
Step 1: 0 + 396 = 396
Step 2: 396 + 396 = 792
Step 3: 792 + 396 = 1188
Step 4: 1188 + 396 = 1584
Step 5: 1584 + 396 = 1980
Step 6: 1980 + 396 = 2376
Step 7: 2376 + 396 = 2772
Step 8: 2772 + 396 = 3168
Step 9: 3168 + 396 = 3564
Step 10: 3564 + 396 = 3960
Step 11: 3960 + 396 = 4356
Step 12: 4356 + 396 = 4752
Step 13: 4752 + 396 = 5148
Step 14: 5148 + 396 = 5544
Step 15: 5544 + 396 = 5940
Step 16: 5940 + 396 = 6336
Step 17: 6336 + 396 = 6732
Step 18: 6732 + 396 = 7128
Step 19: 7128 + 396 = 7524
Step 20: 7524 + 396 = 7920
Step 21: 7920 + 396 = 8316
Step 22: 8316 + 396 = 8712
Step 23: 8712 + 396 = 9108
Step 24: 9108 + 396 = 9504
Step 25: 9504 + 396 = 9900
Step 26: 9900 + 396 = 10296
Step 27: 10296 + 396 = 10692
Step 28: 10692 + 396 = 11088
Step 29: 11088 + 396 = 11484
Step 30: 11484 + 396 = 11880
Step 31: 11880 + 396 = 12276
Step 32: 12276 + 396 = 12672
Step 33: 12672 + 396 = 13068
Step 34: 13068 + 396 = 13464
Step 35: 13464 + 396 = 13860
Step 36: 13860 + 396 = 14256
Step 37: 14256 + 396 = 14652
Step 38: 14652 + 396 = 15048
Step 39: 15048 + 396 = 15444
Step 40: 15444 + 396 = 15840
Step 41: 15840 + 396 = 16236
Step 42: 16236 + 396 = 16632
Step 43: 16632 + 396 = 17028
Step 44: 17028 + 396 = 17424
Step 45: 17424 + 396 = 17820
Step 46: 17820 + 396 = 18216
Step 47: 18216 + 396 = 18612
Step 48: 18612 + 396 = 19008
Step 49: 19008 + 396 = 19404
Step 50: 19404 + 396 = 19800
Step 51: 19800 + 396 = 20196
Step 52: 20196 + 396 = 20592
Step 53: 20592 + 396 = 20988
Step 54: 20988 + 396 = 21384
Step 55: 21384 + 396 = 21780
Step 56: 21780 + 396 = 22176
Step 57: 22176 + 396 = 22572
Step 58: 22572 + 396 = 22968
Step 59: 22968 + 396 = 23364
Step 60: 23364 + 396 = 23760
Step 61: 23760 + 396 = 24156
Step 62: 24156 + 396 = 24552
Step 63: 24552 + 396 = 24948
Step 64: 24948 + 396 = 25344
Step 65: 25344 + 396 = 25740
Step 66: 25740 + 396 = 26136
Step 67: 26136 + 396 = 26532
Step 68: 26532 + 396 = 26928
Step 69: 26928 + 396 = 27324
Step 70: 27324 + 396 = 27720
Step 71: 27720 + 396 = 28116
Step 72: 28116 + 396 = 28512
Step 73: 28512 + 396 = 28908
Step 74: 28908 + 396 = 29304
Step 75: 29304 + 396 = 29700
Step 76: 29700 + 396 = 30096
Step 77: 30096 + 396 = 30492
Step 78: 30492 + 396 = 30888
Step 79: 30888 + 396 = 31284
Step 80: 31284 + 396 = 31680
Step 81: 31680 + 396 = 32076
Step 82: 32076 + 396 = 32472
Step 83: 32472 + 396 = 32868
Step 84: 32868 + 396 = 33264
Step 85: 33264 + 396 = 33660
Step 86: 33660 + 396 = 34056
Step 87: 34056 + 396 = 34452
Step 88: 34452 + 396 = 34848
Step 89: 34848 + 396 = 35244
Step 90: 35244 + 396 = 35640
Step 91: 35640 + 396 = 36036
Step 92: 36036 + 396 = 36432
Step 93: 36432 + 396 = 36828
Step 94: 36828 + 396 = 37224
Step 95: 37224 + 396 = 37620
Step 96: 37620 + 396 = 38016
Step 97: 38016 + 396 = 38412
Step 98: 38412 + 396 = 38808
Step 99: 38808 + 396 = 39204
Step 100: 39204 + 396 = 39600
Step 101: 39600 + 396 = 39996
Step 102: 39996 + 396 = 40392
Step 103: 40392 + 396 = 40788
Step 104: 40788 + 396 = 41184
Step 105: 41184 + 396 = 41580
Step 106: 41580 + 396 = 41976
Step 107: 41976 + 396 = 42372
Step 108: 42372 + 396 = 42768
Step 109: 42768 + 396 = 43164
Step 110: 43164 + 396 = 43560
Step 111: 43560 + 396 = 43956
Step 112: 43956 + 396 = 44352
Step 113: 44352 + 396 = 44748
Step 114: 44748 + 396 = 45144
Step 115: 45144 + 396 = 45540
Step 116: 45540 + 396 = 45936
Step 117: 45936 + 396 = 46332
Step 118: 46332 + 396 = 46728
Step 119: 46728 + 396 = 47124
Step 120: 47124 + 396 = 47520
Step 121: 47520 + 396 = 47916
Step 122: 47916 + 396 = 48312
Step 123: 48312 + 396 = 48708
Step 124: 48708 + 396 = 49104
Step 125: 49104 + 396 = 49500
Step 126: 49500 + 396 = 49896
Step 127: 49896 + 396 = 50292
Step 128: 50292 + 396 = 50688
Step 129: 50688 + 396 = 51084
Step 130: 51084 + 396 = 51480
Step 131: 51480 + 396 = 51876
Step 132: 51876 + 396 = 52272
Step 133: 52272 + 396 = 52668
Step 134: 52668 + 396 = 53064
Step 135: 53064 + 396 = 53460
Step 136: 53460 + 396 = 53856
Step 137: 53856 + 396 = 54252
Step 138: 54252 + 396 = 54648
Step 139: 54648 + 396 = 55044
Step 140: 55044 + 396 = 55440
Step 141: 55440 + 396 = 55836
Step 142: 55836 + 396 = 56232
Step 143: 56232 + 396 = 56628
Step 144: 56628 + 396 = 57024
Step 145: 57024 + 396 = 57420
Step 146: 57420 + 396 = 57816
Step 147: 57816 + 396 = 58212
Step 148: 58212 + 396 = 58608
Step 149: 58608 + 396 = 59004
Step 150: 59004 + 396 = 59400
Step 151: 59400 + 396 = 59796
Step 152: 59796 + 396 = 60192
Step 153: 60192 + 396 = 60588
Step 154: 60588 + 396 = 60984
Step 155: 60984 + 396 = 61380
Step 156: 61380 + 396 = 61776
Step 157: 61776 + 396 = 62172
Step 158: 62172 + 396 = 62568
Step 159: 62568 + 396 = 62964

So, 396*159 = 62964