OK, let's work through this together. We're starting with 326 and we're going to multiply it by 142, which means we add 326 to itself 142 times.
Step 1: 0 + 326 = 326
Step 2: 326 + 326 = 652
Step 3: 652 + 326 = 978
Step 4: 978 + 326 = 1304
Step 5: 1304 + 326 = 1630
Step 6: 1630 + 326 = 1956
Step 7: 1956 + 326 = 2282
Step 8: 2282 + 326 = 2608
Step 9: 2608 + 326 = 2934
Step 10: 2934 + 326 = 3260
Step 11: 3260 + 326 = 3586
Step 12: 3586 + 326 = 3912
Step 13: 3912 + 326 = 4238
Step 14: 4238 + 326 = 4564
Step 15: 4564 + 326 = 4890
Step 16: 4890 + 326 = 5216
Step 17: 5216 + 326 = 5542
Step 18: 5542 + 326 = 5868
Step 19: 5868 + 326 = 6194
Step 20: 6194 + 326 = 6520
Step 21: 6520 + 326 = 6846
Step 22: 6846 + 326 = 7172
Step 23: 7172 + 326 = 7498
Step 24: 7498 + 326 = 7824
Step 25: 7824 + 326 = 8150
Step 26: 8150 + 326 = 8476
Step 27: 8476 + 326 = 8802
Step 28: 8802 + 326 = 9128
Step 29: 9128 + 326 = 9454
Step 30: 9454 + 326 = 9780
Step 31: 9780 + 326 = 10106
Step 32: 10106 + 326 = 10432
Step 33: 10432 + 326 = 10758
Step 34: 10758 + 326 = 11084
Step 35: 11084 + 326 = 11410
Step 36: 11410 + 326 = 11736
Step 37: 11736 + 326 = 12062
Step 38: 12062 + 326 = 12388
Step 39: 12388 + 326 = 12714
Step 40: 12714 + 326 = 13040
Step 41: 13040 + 326 = 13366
Step 42: 13366 + 326 = 13692
Step 43: 13692 + 326 = 14018
Step 44: 14018 + 326 = 14344
Step 45: 14344 + 326 = 14670
Step 46: 14670 + 326 = 14996
Step 47: 14996 + 326 = 15322
Step 48: 15322 + 326 = 15648
Step 49: 15648 + 326 = 15974
Step 50: 15974 + 326 = 16300
Step 51: 16300 + 326 = 16626
Step 52: 16626 + 326 = 16952
Step 53: 16952 + 326 = 17278
Step 54: 17278 + 326 = 17604
Step 55: 17604 + 326 = 17930
Step 56: 17930 + 326 = 18256
Step 57: 18256 + 326 = 18582
Step 58: 18582 + 326 = 18908
Step 59: 18908 + 326 = 19234
Step 60: 19234 + 326 = 19560
Step 61: 19560 + 326 = 19886
Step 62: 19886 + 326 = 20212
Step 63: 20212 + 326 = 20538
Step 64: 20538 + 326 = 20864
Step 65: 20864 + 326 = 21190
Step 66: 21190 + 326 = 21516
Step 67: 21516 + 326 = 21842
Step 68: 21842 + 326 = 22168
Step 69: 22168 + 326 = 22494
Step 70: 22494 + 326 = 22820
Step 71: 22820 + 326 = 23146
Step 72: 23146 + 326 = 23472
Step 73: 23472 + 326 = 23798
Step 74: 23798 + 326 = 24124
Step 75: 24124 + 326 = 24450
Step 76: 24450 + 326 = 24776
Step 77: 24776 + 326 = 25102
Step 78: 25102 + 326 = 25428
Step 79: 25428 + 326 = 25754
Step 80: 25754 + 326 = 26080
Step 81: 26080 + 326 = 26406
Step 82: 26406 + 326 = 26732
Step 83: 26732 + 326 = 27058
Step 84: 27058 + 326 = 27384
Step 85: 27384 + 326 = 27710
Step 86: 27710 + 326 = 28036
Step 87: 28036 + 326 = 28362
Step 88: 28362 + 326 = 28688
Step 89: 28688 + 326 = 29014
Step 90: 29014 + 326 = 29340
Step 91: 29340 + 326 = 29666
Step 92: 29666 + 326 = 29992
Step 93: 29992 + 326 = 30318
Step 94: 30318 + 326 = 30644
Step 95: 30644 + 326 = 30970
Step 96: 30970 + 326 = 31296
Step 97: 31296 + 326 = 31622
Step 98: 31622 + 326 = 31948
Step 99: 31948 + 326 = 32274
Step 100: 32274 + 326 = 32600
Step 101: 32600 + 326 = 32926
Step 102: 32926 + 326 = 33252
Step 103: 33252 + 326 = 33578
Step 104: 33578 + 326 = 33904
Step 105: 33904 + 326 = 34230
Step 106: 34230 + 326 = 34556
Step 107: 34556 + 326 = 34882
Step 108: 34882 + 326 = 35208
Step 109: 35208 + 326 = 35534
Step 110: 35534 + 326 = 35860
Step 111: 35860 + 326 = 36186
Step 112: 36186 + 326 = 36512
Step 113: 36512 + 326 = 36838
Step 114: 36838 + 326 = 37164
Step 115: 37164 + 326 = 37490
Step 116: 37490 + 326 = 37816
Step 117: 37816 + 326 = 38142
Step 118: 38142 + 326 = 38468
Step 119: 38468 + 326 = 38794
Step 120: 38794 + 326 = 39120
Step 121: 39120 + 326 = 39446
Step 122: 39446 + 326 = 39772
Step 123: 39772 + 326 = 40098
Step 124: 40098 + 326 = 40424
Step 125: 40424 + 326 = 40750
Step 126: 40750 + 326 = 41076
Step 127: 41076 + 326 = 41402
Step 128: 41402 + 326 = 41728
Step 129: 41728 + 326 = 42054
Step 130: 42054 + 326 = 42380
Step 131: 42380 + 326 = 42706
Step 132: 42706 + 326 = 43032
Step 133: 43032 + 326 = 43358
Step 134: 43358 + 326 = 43684
Step 135: 43684 + 326 = 44010
Step 136: 44010 + 326 = 44336
Step 137: 44336 + 326 = 44662
Step 138: 44662 + 326 = 44988
Step 139: 44988 + 326 = 45314
Step 140: 45314 + 326 = 45640
Step 141: 45640 + 326 = 45966
Step 142: 45966 + 326 = 46292

So, 326*142 = 46292