OK, let's crack this. We're given 58 and our task is to multiply it by 98. Essentially, we'll be adding 58 to itself 98 times.
Step 1: 0 + 58 = 58
Step 2: 58 + 58 = 116
Step 3: 116 + 58 = 174
Step 4: 174 + 58 = 232
Step 5: 232 + 58 = 290
Step 6: 290 + 58 = 348
Step 7: 348 + 58 = 406
Step 8: 406 + 58 = 464
Step 9: 464 + 58 = 522
Step 10: 522 + 58 = 580
Step 11: 580 + 58 = 638
Step 12: 638 + 58 = 696
Step 13: 696 + 58 = 754
Step 14: 754 + 58 = 812
Step 15: 812 + 58 = 870
Step 16: 870 + 58 = 928
Step 17: 928 + 58 = 986
Step 18: 986 + 58 = 1044
Step 19: 1044 + 58 = 1102
Step 20: 1102 + 58 = 1160
Step 21: 1160 + 58 = 1218
Step 22: 1218 + 58 = 1276
Step 23: 1276 + 58 = 1334
Step 24: 1334 + 58 = 1392
Step 25: 1392 + 58 = 1450
Step 26: 1450 + 58 = 1508
Step 27: 1508 + 58 = 1566
Step 28: 1566 + 58 = 1624
Step 29: 1624 + 58 = 1682
Step 30: 1682 + 58 = 1740
Step 31: 1740 + 58 = 1798
Step 32: 1798 + 58 = 1856
Step 33: 1856 + 58 = 1914
Step 34: 1914 + 58 = 1972
Step 35: 1972 + 58 = 2030
Step 36: 2030 + 58 = 2088
Step 37: 2088 + 58 = 2146
Step 38: 2146 + 58 = 2204
Step 39: 2204 + 58 = 2262
Step 40: 2262 + 58 = 2320
Step 41: 2320 + 58 = 2378
Step 42: 2378 + 58 = 2436
Step 43: 2436 + 58 = 2494
Step 44: 2494 + 58 = 2552
Step 45: 2552 + 58 = 2610
Step 46: 2610 + 58 = 2668
Step 47: 2668 + 58 = 2726
Step 48: 2726 + 58 = 2784
Step 49: 2784 + 58 = 2842
Step 50: 2842 + 58 = 2900
Step 51: 2900 + 58 = 2958
Step 52: 2958 + 58 = 3016
Step 53: 3016 + 58 = 3074
Step 54: 3074 + 58 = 3132
Step 55: 3132 + 58 = 3190
Step 56: 3190 + 58 = 3248
Step 57: 3248 + 58 = 3306
Step 58: 3306 + 58 = 3364
Step 59: 3364 + 58 = 3422
Step 60: 3422 + 58 = 3480
Step 61: 3480 + 58 = 3538
Step 62: 3538 + 58 = 3596
Step 63: 3596 + 58 = 3654
Step 64: 3654 + 58 = 3712
Step 65: 3712 + 58 = 3770
Step 66: 3770 + 58 = 3828
Step 67: 3828 + 58 = 3886
Step 68: 3886 + 58 = 3944
Step 69: 3944 + 58 = 4002
Step 70: 4002 + 58 = 4060
Step 71: 4060 + 58 = 4118
Step 72: 4118 + 58 = 4176
Step 73: 4176 + 58 = 4234
Step 74: 4234 + 58 = 4292
Step 75: 4292 + 58 = 4350
Step 76: 4350 + 58 = 4408
Step 77: 4408 + 58 = 4466
Step 78: 4466 + 58 = 4524
Step 79: 4524 + 58 = 4582
Step 80: 4582 + 58 = 4640
Step 81: 4640 + 58 = 4698
Step 82: 4698 + 58 = 4756
Step 83: 4756 + 58 = 4814
Step 84: 4814 + 58 = 4872
Step 85: 4872 + 58 = 4930
Step 86: 4930 + 58 = 4988
Step 87: 4988 + 58 = 5046
Step 88: 5046 + 58 = 5104
Step 89: 5104 + 58 = 5162
Step 90: 5162 + 58 = 5220
Step 91: 5220 + 58 = 5278
Step 92: 5278 + 58 = 5336
Step 93: 5336 + 58 = 5394
Step 94: 5394 + 58 = 5452
Step 95: 5452 + 58 = 5510
Step 96: 5510 + 58 = 5568
Step 97: 5568 + 58 = 5626
Step 98: 5626 + 58 = 5684

So, 58*98 = 5684