Alright, let's solve this math problem step by step. First, we have the number 61. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 158. So, we're going to take the number 61 and add it to itself 158 times.
Step 1: 0 + 61 = 61
Step 2: 61 + 61 = 122
Step 3: 122 + 61 = 183
Step 4: 183 + 61 = 244
Step 5: 244 + 61 = 305
Step 6: 305 + 61 = 366
Step 7: 366 + 61 = 427
Step 8: 427 + 61 = 488
Step 9: 488 + 61 = 549
Step 10: 549 + 61 = 610
Step 11: 610 + 61 = 671
Step 12: 671 + 61 = 732
Step 13: 732 + 61 = 793
Step 14: 793 + 61 = 854
Step 15: 854 + 61 = 915
Step 16: 915 + 61 = 976
Step 17: 976 + 61 = 1037
Step 18: 1037 + 61 = 1098
Step 19: 1098 + 61 = 1159
Step 20: 1159 + 61 = 1220
Step 21: 1220 + 61 = 1281
Step 22: 1281 + 61 = 1342
Step 23: 1342 + 61 = 1403
Step 24: 1403 + 61 = 1464
Step 25: 1464 + 61 = 1525
Step 26: 1525 + 61 = 1586
Step 27: 1586 + 61 = 1647
Step 28: 1647 + 61 = 1708
Step 29: 1708 + 61 = 1769
Step 30: 1769 + 61 = 1830
Step 31: 1830 + 61 = 1891
Step 32: 1891 + 61 = 1952
Step 33: 1952 + 61 = 2013
Step 34: 2013 + 61 = 2074
Step 35: 2074 + 61 = 2135
Step 36: 2135 + 61 = 2196
Step 37: 2196 + 61 = 2257
Step 38: 2257 + 61 = 2318
Step 39: 2318 + 61 = 2379
Step 40: 2379 + 61 = 2440
Step 41: 2440 + 61 = 2501
Step 42: 2501 + 61 = 2562
Step 43: 2562 + 61 = 2623
Step 44: 2623 + 61 = 2684
Step 45: 2684 + 61 = 2745
Step 46: 2745 + 61 = 2806
Step 47: 2806 + 61 = 2867
Step 48: 2867 + 61 = 2928
Step 49: 2928 + 61 = 2989
Step 50: 2989 + 61 = 3050
Step 51: 3050 + 61 = 3111
Step 52: 3111 + 61 = 3172
Step 53: 3172 + 61 = 3233
Step 54: 3233 + 61 = 3294
Step 55: 3294 + 61 = 3355
Step 56: 3355 + 61 = 3416
Step 57: 3416 + 61 = 3477
Step 58: 3477 + 61 = 3538
Step 59: 3538 + 61 = 3599
Step 60: 3599 + 61 = 3660
Step 61: 3660 + 61 = 3721
Step 62: 3721 + 61 = 3782
Step 63: 3782 + 61 = 3843
Step 64: 3843 + 61 = 3904
Step 65: 3904 + 61 = 3965
Step 66: 3965 + 61 = 4026
Step 67: 4026 + 61 = 4087
Step 68: 4087 + 61 = 4148
Step 69: 4148 + 61 = 4209
Step 70: 4209 + 61 = 4270
Step 71: 4270 + 61 = 4331
Step 72: 4331 + 61 = 4392
Step 73: 4392 + 61 = 4453
Step 74: 4453 + 61 = 4514
Step 75: 4514 + 61 = 4575
Step 76: 4575 + 61 = 4636
Step 77: 4636 + 61 = 4697
Step 78: 4697 + 61 = 4758
Step 79: 4758 + 61 = 4819
Step 80: 4819 + 61 = 4880
Step 81: 4880 + 61 = 4941
Step 82: 4941 + 61 = 5002
Step 83: 5002 + 61 = 5063
Step 84: 5063 + 61 = 5124
Step 85: 5124 + 61 = 5185
Step 86: 5185 + 61 = 5246
Step 87: 5246 + 61 = 5307
Step 88: 5307 + 61 = 5368
Step 89: 5368 + 61 = 5429
Step 90: 5429 + 61 = 5490
Step 91: 5490 + 61 = 5551
Step 92: 5551 + 61 = 5612
Step 93: 5612 + 61 = 5673
Step 94: 5673 + 61 = 5734
Step 95: 5734 + 61 = 5795
Step 96: 5795 + 61 = 5856
Step 97: 5856 + 61 = 5917
Step 98: 5917 + 61 = 5978
Step 99: 5978 + 61 = 6039
Step 100: 6039 + 61 = 6100
Step 101: 6100 + 61 = 6161
Step 102: 6161 + 61 = 6222
Step 103: 6222 + 61 = 6283
Step 104: 6283 + 61 = 6344
Step 105: 6344 + 61 = 6405
Step 106: 6405 + 61 = 6466
Step 107: 6466 + 61 = 6527
Step 108: 6527 + 61 = 6588
Step 109: 6588 + 61 = 6649
Step 110: 6649 + 61 = 6710
Step 111: 6710 + 61 = 6771
Step 112: 6771 + 61 = 6832
Step 113: 6832 + 61 = 6893
Step 114: 6893 + 61 = 6954
Step 115: 6954 + 61 = 7015
Step 116: 7015 + 61 = 7076
Step 117: 7076 + 61 = 7137
Step 118: 7137 + 61 = 7198
Step 119: 7198 + 61 = 7259
Step 120: 7259 + 61 = 7320
Step 121: 7320 + 61 = 7381
Step 122: 7381 + 61 = 7442
Step 123: 7442 + 61 = 7503
Step 124: 7503 + 61 = 7564
Step 125: 7564 + 61 = 7625
Step 126: 7625 + 61 = 7686
Step 127: 7686 + 61 = 7747
Step 128: 7747 + 61 = 7808
Step 129: 7808 + 61 = 7869
Step 130: 7869 + 61 = 7930
Step 131: 7930 + 61 = 7991
Step 132: 7991 + 61 = 8052
Step 133: 8052 + 61 = 8113
Step 134: 8113 + 61 = 8174
Step 135: 8174 + 61 = 8235
Step 136: 8235 + 61 = 8296
Step 137: 8296 + 61 = 8357
Step 138: 8357 + 61 = 8418
Step 139: 8418 + 61 = 8479
Step 140: 8479 + 61 = 8540
Step 141: 8540 + 61 = 8601
Step 142: 8601 + 61 = 8662
Step 143: 8662 + 61 = 8723
Step 144: 8723 + 61 = 8784
Step 145: 8784 + 61 = 8845
Step 146: 8845 + 61 = 8906
Step 147: 8906 + 61 = 8967
Step 148: 8967 + 61 = 9028
Step 149: 9028 + 61 = 9089
Step 150: 9089 + 61 = 9150
Step 151: 9150 + 61 = 9211
Step 152: 9211 + 61 = 9272
Step 153: 9272 + 61 = 9333
Step 154: 9333 + 61 = 9394
Step 155: 9394 + 61 = 9455
Step 156: 9455 + 61 = 9516
Step 157: 9516 + 61 = 9577
Step 158: 9577 + 61 = 9638

So, 61*158 = 9638