OK, let's work through this together. We're starting with 706 and we're going to multiply it by 138, which means we add 706 to itself 138 times.
Step 1: 0 + 706 = 706
Step 2: 706 + 706 = 1412
Step 3: 1412 + 706 = 2118
Step 4: 2118 + 706 = 2824
Step 5: 2824 + 706 = 3530
Step 6: 3530 + 706 = 4236
Step 7: 4236 + 706 = 4942
Step 8: 4942 + 706 = 5648
Step 9: 5648 + 706 = 6354
Step 10: 6354 + 706 = 7060
Step 11: 7060 + 706 = 7766
Step 12: 7766 + 706 = 8472
Step 13: 8472 + 706 = 9178
Step 14: 9178 + 706 = 9884
Step 15: 9884 + 706 = 10590
Step 16: 10590 + 706 = 11296
Step 17: 11296 + 706 = 12002
Step 18: 12002 + 706 = 12708
Step 19: 12708 + 706 = 13414
Step 20: 13414 + 706 = 14120
Step 21: 14120 + 706 = 14826
Step 22: 14826 + 706 = 15532
Step 23: 15532 + 706 = 16238
Step 24: 16238 + 706 = 16944
Step 25: 16944 + 706 = 17650
Step 26: 17650 + 706 = 18356
Step 27: 18356 + 706 = 19062
Step 28: 19062 + 706 = 19768
Step 29: 19768 + 706 = 20474
Step 30: 20474 + 706 = 21180
Step 31: 21180 + 706 = 21886
Step 32: 21886 + 706 = 22592
Step 33: 22592 + 706 = 23298
Step 34: 23298 + 706 = 24004
Step 35: 24004 + 706 = 24710
Step 36: 24710 + 706 = 25416
Step 37: 25416 + 706 = 26122
Step 38: 26122 + 706 = 26828
Step 39: 26828 + 706 = 27534
Step 40: 27534 + 706 = 28240
Step 41: 28240 + 706 = 28946
Step 42: 28946 + 706 = 29652
Step 43: 29652 + 706 = 30358
Step 44: 30358 + 706 = 31064
Step 45: 31064 + 706 = 31770
Step 46: 31770 + 706 = 32476
Step 47: 32476 + 706 = 33182
Step 48: 33182 + 706 = 33888
Step 49: 33888 + 706 = 34594
Step 50: 34594 + 706 = 35300
Step 51: 35300 + 706 = 36006
Step 52: 36006 + 706 = 36712
Step 53: 36712 + 706 = 37418
Step 54: 37418 + 706 = 38124
Step 55: 38124 + 706 = 38830
Step 56: 38830 + 706 = 39536
Step 57: 39536 + 706 = 40242
Step 58: 40242 + 706 = 40948
Step 59: 40948 + 706 = 41654
Step 60: 41654 + 706 = 42360
Step 61: 42360 + 706 = 43066
Step 62: 43066 + 706 = 43772
Step 63: 43772 + 706 = 44478
Step 64: 44478 + 706 = 45184
Step 65: 45184 + 706 = 45890
Step 66: 45890 + 706 = 46596
Step 67: 46596 + 706 = 47302
Step 68: 47302 + 706 = 48008
Step 69: 48008 + 706 = 48714
Step 70: 48714 + 706 = 49420
Step 71: 49420 + 706 = 50126
Step 72: 50126 + 706 = 50832
Step 73: 50832 + 706 = 51538
Step 74: 51538 + 706 = 52244
Step 75: 52244 + 706 = 52950
Step 76: 52950 + 706 = 53656
Step 77: 53656 + 706 = 54362
Step 78: 54362 + 706 = 55068
Step 79: 55068 + 706 = 55774
Step 80: 55774 + 706 = 56480
Step 81: 56480 + 706 = 57186
Step 82: 57186 + 706 = 57892
Step 83: 57892 + 706 = 58598
Step 84: 58598 + 706 = 59304
Step 85: 59304 + 706 = 60010
Step 86: 60010 + 706 = 60716
Step 87: 60716 + 706 = 61422
Step 88: 61422 + 706 = 62128
Step 89: 62128 + 706 = 62834
Step 90: 62834 + 706 = 63540
Step 91: 63540 + 706 = 64246
Step 92: 64246 + 706 = 64952
Step 93: 64952 + 706 = 65658
Step 94: 65658 + 706 = 66364
Step 95: 66364 + 706 = 67070
Step 96: 67070 + 706 = 67776
Step 97: 67776 + 706 = 68482
Step 98: 68482 + 706 = 69188
Step 99: 69188 + 706 = 69894
Step 100: 69894 + 706 = 70600
Step 101: 70600 + 706 = 71306
Step 102: 71306 + 706 = 72012
Step 103: 72012 + 706 = 72718
Step 104: 72718 + 706 = 73424
Step 105: 73424 + 706 = 74130
Step 106: 74130 + 706 = 74836
Step 107: 74836 + 706 = 75542
Step 108: 75542 + 706 = 76248
Step 109: 76248 + 706 = 76954
Step 110: 76954 + 706 = 77660
Step 111: 77660 + 706 = 78366
Step 112: 78366 + 706 = 79072
Step 113: 79072 + 706 = 79778
Step 114: 79778 + 706 = 80484
Step 115: 80484 + 706 = 81190
Step 116: 81190 + 706 = 81896
Step 117: 81896 + 706 = 82602
Step 118: 82602 + 706 = 83308
Step 119: 83308 + 706 = 84014
Step 120: 84014 + 706 = 84720
Step 121: 84720 + 706 = 85426
Step 122: 85426 + 706 = 86132
Step 123: 86132 + 706 = 86838
Step 124: 86838 + 706 = 87544
Step 125: 87544 + 706 = 88250
Step 126: 88250 + 706 = 88956
Step 127: 88956 + 706 = 89662
Step 128: 89662 + 706 = 90368
Step 129: 90368 + 706 = 91074
Step 130: 91074 + 706 = 91780
Step 131: 91780 + 706 = 92486
Step 132: 92486 + 706 = 93192
Step 133: 93192 + 706 = 93898
Step 134: 93898 + 706 = 94604
Step 135: 94604 + 706 = 95310
Step 136: 95310 + 706 = 96016
Step 137: 96016 + 706 = 96722
Step 138: 96722 + 706 = 97428

So, 706*138 = 97428