OK, let's work through this together. We're starting with 69 and we're going to multiply it by 150, which means we add 69 to itself 150 times.
Step 1: 0 + 69 = 69
Step 2: 69 + 69 = 138
Step 3: 138 + 69 = 207
Step 4: 207 + 69 = 276
Step 5: 276 + 69 = 345
Step 6: 345 + 69 = 414
Step 7: 414 + 69 = 483
Step 8: 483 + 69 = 552
Step 9: 552 + 69 = 621
Step 10: 621 + 69 = 690
Step 11: 690 + 69 = 759
Step 12: 759 + 69 = 828
Step 13: 828 + 69 = 897
Step 14: 897 + 69 = 966
Step 15: 966 + 69 = 1035
Step 16: 1035 + 69 = 1104
Step 17: 1104 + 69 = 1173
Step 18: 1173 + 69 = 1242
Step 19: 1242 + 69 = 1311
Step 20: 1311 + 69 = 1380
Step 21: 1380 + 69 = 1449
Step 22: 1449 + 69 = 1518
Step 23: 1518 + 69 = 1587
Step 24: 1587 + 69 = 1656
Step 25: 1656 + 69 = 1725
Step 26: 1725 + 69 = 1794
Step 27: 1794 + 69 = 1863
Step 28: 1863 + 69 = 1932
Step 29: 1932 + 69 = 2001
Step 30: 2001 + 69 = 2070
Step 31: 2070 + 69 = 2139
Step 32: 2139 + 69 = 2208
Step 33: 2208 + 69 = 2277
Step 34: 2277 + 69 = 2346
Step 35: 2346 + 69 = 2415
Step 36: 2415 + 69 = 2484
Step 37: 2484 + 69 = 2553
Step 38: 2553 + 69 = 2622
Step 39: 2622 + 69 = 2691
Step 40: 2691 + 69 = 2760
Step 41: 2760 + 69 = 2829
Step 42: 2829 + 69 = 2898
Step 43: 2898 + 69 = 2967
Step 44: 2967 + 69 = 3036
Step 45: 3036 + 69 = 3105
Step 46: 3105 + 69 = 3174
Step 47: 3174 + 69 = 3243
Step 48: 3243 + 69 = 3312
Step 49: 3312 + 69 = 3381
Step 50: 3381 + 69 = 3450
Step 51: 3450 + 69 = 3519
Step 52: 3519 + 69 = 3588
Step 53: 3588 + 69 = 3657
Step 54: 3657 + 69 = 3726
Step 55: 3726 + 69 = 3795
Step 56: 3795 + 69 = 3864
Step 57: 3864 + 69 = 3933
Step 58: 3933 + 69 = 4002
Step 59: 4002 + 69 = 4071
Step 60: 4071 + 69 = 4140
Step 61: 4140 + 69 = 4209
Step 62: 4209 + 69 = 4278
Step 63: 4278 + 69 = 4347
Step 64: 4347 + 69 = 4416
Step 65: 4416 + 69 = 4485
Step 66: 4485 + 69 = 4554
Step 67: 4554 + 69 = 4623
Step 68: 4623 + 69 = 4692
Step 69: 4692 + 69 = 4761
Step 70: 4761 + 69 = 4830
Step 71: 4830 + 69 = 4899
Step 72: 4899 + 69 = 4968
Step 73: 4968 + 69 = 5037
Step 74: 5037 + 69 = 5106
Step 75: 5106 + 69 = 5175
Step 76: 5175 + 69 = 5244
Step 77: 5244 + 69 = 5313
Step 78: 5313 + 69 = 5382
Step 79: 5382 + 69 = 5451
Step 80: 5451 + 69 = 5520
Step 81: 5520 + 69 = 5589
Step 82: 5589 + 69 = 5658
Step 83: 5658 + 69 = 5727
Step 84: 5727 + 69 = 5796
Step 85: 5796 + 69 = 5865
Step 86: 5865 + 69 = 5934
Step 87: 5934 + 69 = 6003
Step 88: 6003 + 69 = 6072
Step 89: 6072 + 69 = 6141
Step 90: 6141 + 69 = 6210
Step 91: 6210 + 69 = 6279
Step 92: 6279 + 69 = 6348
Step 93: 6348 + 69 = 6417
Step 94: 6417 + 69 = 6486
Step 95: 6486 + 69 = 6555
Step 96: 6555 + 69 = 6624
Step 97: 6624 + 69 = 6693
Step 98: 6693 + 69 = 6762
Step 99: 6762 + 69 = 6831
Step 100: 6831 + 69 = 6900
Step 101: 6900 + 69 = 6969
Step 102: 6969 + 69 = 7038
Step 103: 7038 + 69 = 7107
Step 104: 7107 + 69 = 7176
Step 105: 7176 + 69 = 7245
Step 106: 7245 + 69 = 7314
Step 107: 7314 + 69 = 7383
Step 108: 7383 + 69 = 7452
Step 109: 7452 + 69 = 7521
Step 110: 7521 + 69 = 7590
Step 111: 7590 + 69 = 7659
Step 112: 7659 + 69 = 7728
Step 113: 7728 + 69 = 7797
Step 114: 7797 + 69 = 7866
Step 115: 7866 + 69 = 7935
Step 116: 7935 + 69 = 8004
Step 117: 8004 + 69 = 8073
Step 118: 8073 + 69 = 8142
Step 119: 8142 + 69 = 8211
Step 120: 8211 + 69 = 8280
Step 121: 8280 + 69 = 8349
Step 122: 8349 + 69 = 8418
Step 123: 8418 + 69 = 8487
Step 124: 8487 + 69 = 8556
Step 125: 8556 + 69 = 8625
Step 126: 8625 + 69 = 8694
Step 127: 8694 + 69 = 8763
Step 128: 8763 + 69 = 8832
Step 129: 8832 + 69 = 8901
Step 130: 8901 + 69 = 8970
Step 131: 8970 + 69 = 9039
Step 132: 9039 + 69 = 9108
Step 133: 9108 + 69 = 9177
Step 134: 9177 + 69 = 9246
Step 135: 9246 + 69 = 9315
Step 136: 9315 + 69 = 9384
Step 137: 9384 + 69 = 9453
Step 138: 9453 + 69 = 9522
Step 139: 9522 + 69 = 9591
Step 140: 9591 + 69 = 9660
Step 141: 9660 + 69 = 9729
Step 142: 9729 + 69 = 9798
Step 143: 9798 + 69 = 9867
Step 144: 9867 + 69 = 9936
Step 145: 9936 + 69 = 10005
Step 146: 10005 + 69 = 10074
Step 147: 10074 + 69 = 10143
Step 148: 10143 + 69 = 10212
Step 149: 10212 + 69 = 10281
Step 150: 10281 + 69 = 10350

So, 69*150 = 10350