Alright, let's solve this math problem step by step. First, we have the number 526. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 140. So, we're going to take the number 526 and add it to itself 140 times.
Step 1: 0 + 526 = 526
Step 2: 526 + 526 = 1052
Step 3: 1052 + 526 = 1578
Step 4: 1578 + 526 = 2104
Step 5: 2104 + 526 = 2630
Step 6: 2630 + 526 = 3156
Step 7: 3156 + 526 = 3682
Step 8: 3682 + 526 = 4208
Step 9: 4208 + 526 = 4734
Step 10: 4734 + 526 = 5260
Step 11: 5260 + 526 = 5786
Step 12: 5786 + 526 = 6312
Step 13: 6312 + 526 = 6838
Step 14: 6838 + 526 = 7364
Step 15: 7364 + 526 = 7890
Step 16: 7890 + 526 = 8416
Step 17: 8416 + 526 = 8942
Step 18: 8942 + 526 = 9468
Step 19: 9468 + 526 = 9994
Step 20: 9994 + 526 = 10520
Step 21: 10520 + 526 = 11046
Step 22: 11046 + 526 = 11572
Step 23: 11572 + 526 = 12098
Step 24: 12098 + 526 = 12624
Step 25: 12624 + 526 = 13150
Step 26: 13150 + 526 = 13676
Step 27: 13676 + 526 = 14202
Step 28: 14202 + 526 = 14728
Step 29: 14728 + 526 = 15254
Step 30: 15254 + 526 = 15780
Step 31: 15780 + 526 = 16306
Step 32: 16306 + 526 = 16832
Step 33: 16832 + 526 = 17358
Step 34: 17358 + 526 = 17884
Step 35: 17884 + 526 = 18410
Step 36: 18410 + 526 = 18936
Step 37: 18936 + 526 = 19462
Step 38: 19462 + 526 = 19988
Step 39: 19988 + 526 = 20514
Step 40: 20514 + 526 = 21040
Step 41: 21040 + 526 = 21566
Step 42: 21566 + 526 = 22092
Step 43: 22092 + 526 = 22618
Step 44: 22618 + 526 = 23144
Step 45: 23144 + 526 = 23670
Step 46: 23670 + 526 = 24196
Step 47: 24196 + 526 = 24722
Step 48: 24722 + 526 = 25248
Step 49: 25248 + 526 = 25774
Step 50: 25774 + 526 = 26300
Step 51: 26300 + 526 = 26826
Step 52: 26826 + 526 = 27352
Step 53: 27352 + 526 = 27878
Step 54: 27878 + 526 = 28404
Step 55: 28404 + 526 = 28930
Step 56: 28930 + 526 = 29456
Step 57: 29456 + 526 = 29982
Step 58: 29982 + 526 = 30508
Step 59: 30508 + 526 = 31034
Step 60: 31034 + 526 = 31560
Step 61: 31560 + 526 = 32086
Step 62: 32086 + 526 = 32612
Step 63: 32612 + 526 = 33138
Step 64: 33138 + 526 = 33664
Step 65: 33664 + 526 = 34190
Step 66: 34190 + 526 = 34716
Step 67: 34716 + 526 = 35242
Step 68: 35242 + 526 = 35768
Step 69: 35768 + 526 = 36294
Step 70: 36294 + 526 = 36820
Step 71: 36820 + 526 = 37346
Step 72: 37346 + 526 = 37872
Step 73: 37872 + 526 = 38398
Step 74: 38398 + 526 = 38924
Step 75: 38924 + 526 = 39450
Step 76: 39450 + 526 = 39976
Step 77: 39976 + 526 = 40502
Step 78: 40502 + 526 = 41028
Step 79: 41028 + 526 = 41554
Step 80: 41554 + 526 = 42080
Step 81: 42080 + 526 = 42606
Step 82: 42606 + 526 = 43132
Step 83: 43132 + 526 = 43658
Step 84: 43658 + 526 = 44184
Step 85: 44184 + 526 = 44710
Step 86: 44710 + 526 = 45236
Step 87: 45236 + 526 = 45762
Step 88: 45762 + 526 = 46288
Step 89: 46288 + 526 = 46814
Step 90: 46814 + 526 = 47340
Step 91: 47340 + 526 = 47866
Step 92: 47866 + 526 = 48392
Step 93: 48392 + 526 = 48918
Step 94: 48918 + 526 = 49444
Step 95: 49444 + 526 = 49970
Step 96: 49970 + 526 = 50496
Step 97: 50496 + 526 = 51022
Step 98: 51022 + 526 = 51548
Step 99: 51548 + 526 = 52074
Step 100: 52074 + 526 = 52600
Step 101: 52600 + 526 = 53126
Step 102: 53126 + 526 = 53652
Step 103: 53652 + 526 = 54178
Step 104: 54178 + 526 = 54704
Step 105: 54704 + 526 = 55230
Step 106: 55230 + 526 = 55756
Step 107: 55756 + 526 = 56282
Step 108: 56282 + 526 = 56808
Step 109: 56808 + 526 = 57334
Step 110: 57334 + 526 = 57860
Step 111: 57860 + 526 = 58386
Step 112: 58386 + 526 = 58912
Step 113: 58912 + 526 = 59438
Step 114: 59438 + 526 = 59964
Step 115: 59964 + 526 = 60490
Step 116: 60490 + 526 = 61016
Step 117: 61016 + 526 = 61542
Step 118: 61542 + 526 = 62068
Step 119: 62068 + 526 = 62594
Step 120: 62594 + 526 = 63120
Step 121: 63120 + 526 = 63646
Step 122: 63646 + 526 = 64172
Step 123: 64172 + 526 = 64698
Step 124: 64698 + 526 = 65224
Step 125: 65224 + 526 = 65750
Step 126: 65750 + 526 = 66276
Step 127: 66276 + 526 = 66802
Step 128: 66802 + 526 = 67328
Step 129: 67328 + 526 = 67854
Step 130: 67854 + 526 = 68380
Step 131: 68380 + 526 = 68906
Step 132: 68906 + 526 = 69432
Step 133: 69432 + 526 = 69958
Step 134: 69958 + 526 = 70484
Step 135: 70484 + 526 = 71010
Step 136: 71010 + 526 = 71536
Step 137: 71536 + 526 = 72062
Step 138: 72062 + 526 = 72588
Step 139: 72588 + 526 = 73114
Step 140: 73114 + 526 = 73640

So, 526*140 = 73640