Alright, let's solve this math problem step by step. First, we have the number 331. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 220. So, we're going to take the number 331 and add it to itself 220 times.
Step 1: 0 + 331 = 331
Step 2: 331 + 331 = 662
Step 3: 662 + 331 = 993
Step 4: 993 + 331 = 1324
Step 5: 1324 + 331 = 1655
Step 6: 1655 + 331 = 1986
Step 7: 1986 + 331 = 2317
Step 8: 2317 + 331 = 2648
Step 9: 2648 + 331 = 2979
Step 10: 2979 + 331 = 3310
Step 11: 3310 + 331 = 3641
Step 12: 3641 + 331 = 3972
Step 13: 3972 + 331 = 4303
Step 14: 4303 + 331 = 4634
Step 15: 4634 + 331 = 4965
Step 16: 4965 + 331 = 5296
Step 17: 5296 + 331 = 5627
Step 18: 5627 + 331 = 5958
Step 19: 5958 + 331 = 6289
Step 20: 6289 + 331 = 6620
Step 21: 6620 + 331 = 6951
Step 22: 6951 + 331 = 7282
Step 23: 7282 + 331 = 7613
Step 24: 7613 + 331 = 7944
Step 25: 7944 + 331 = 8275
Step 26: 8275 + 331 = 8606
Step 27: 8606 + 331 = 8937
Step 28: 8937 + 331 = 9268
Step 29: 9268 + 331 = 9599
Step 30: 9599 + 331 = 9930
Step 31: 9930 + 331 = 10261
Step 32: 10261 + 331 = 10592
Step 33: 10592 + 331 = 10923
Step 34: 10923 + 331 = 11254
Step 35: 11254 + 331 = 11585
Step 36: 11585 + 331 = 11916
Step 37: 11916 + 331 = 12247
Step 38: 12247 + 331 = 12578
Step 39: 12578 + 331 = 12909
Step 40: 12909 + 331 = 13240
Step 41: 13240 + 331 = 13571
Step 42: 13571 + 331 = 13902
Step 43: 13902 + 331 = 14233
Step 44: 14233 + 331 = 14564
Step 45: 14564 + 331 = 14895
Step 46: 14895 + 331 = 15226
Step 47: 15226 + 331 = 15557
Step 48: 15557 + 331 = 15888
Step 49: 15888 + 331 = 16219
Step 50: 16219 + 331 = 16550
Step 51: 16550 + 331 = 16881
Step 52: 16881 + 331 = 17212
Step 53: 17212 + 331 = 17543
Step 54: 17543 + 331 = 17874
Step 55: 17874 + 331 = 18205
Step 56: 18205 + 331 = 18536
Step 57: 18536 + 331 = 18867
Step 58: 18867 + 331 = 19198
Step 59: 19198 + 331 = 19529
Step 60: 19529 + 331 = 19860
Step 61: 19860 + 331 = 20191
Step 62: 20191 + 331 = 20522
Step 63: 20522 + 331 = 20853
Step 64: 20853 + 331 = 21184
Step 65: 21184 + 331 = 21515
Step 66: 21515 + 331 = 21846
Step 67: 21846 + 331 = 22177
Step 68: 22177 + 331 = 22508
Step 69: 22508 + 331 = 22839
Step 70: 22839 + 331 = 23170
Step 71: 23170 + 331 = 23501
Step 72: 23501 + 331 = 23832
Step 73: 23832 + 331 = 24163
Step 74: 24163 + 331 = 24494
Step 75: 24494 + 331 = 24825
Step 76: 24825 + 331 = 25156
Step 77: 25156 + 331 = 25487
Step 78: 25487 + 331 = 25818
Step 79: 25818 + 331 = 26149
Step 80: 26149 + 331 = 26480
Step 81: 26480 + 331 = 26811
Step 82: 26811 + 331 = 27142
Step 83: 27142 + 331 = 27473
Step 84: 27473 + 331 = 27804
Step 85: 27804 + 331 = 28135
Step 86: 28135 + 331 = 28466
Step 87: 28466 + 331 = 28797
Step 88: 28797 + 331 = 29128
Step 89: 29128 + 331 = 29459
Step 90: 29459 + 331 = 29790
Step 91: 29790 + 331 = 30121
Step 92: 30121 + 331 = 30452
Step 93: 30452 + 331 = 30783
Step 94: 30783 + 331 = 31114
Step 95: 31114 + 331 = 31445
Step 96: 31445 + 331 = 31776
Step 97: 31776 + 331 = 32107
Step 98: 32107 + 331 = 32438
Step 99: 32438 + 331 = 32769
Step 100: 32769 + 331 = 33100
Step 101: 33100 + 331 = 33431
Step 102: 33431 + 331 = 33762
Step 103: 33762 + 331 = 34093
Step 104: 34093 + 331 = 34424
Step 105: 34424 + 331 = 34755
Step 106: 34755 + 331 = 35086
Step 107: 35086 + 331 = 35417
Step 108: 35417 + 331 = 35748
Step 109: 35748 + 331 = 36079
Step 110: 36079 + 331 = 36410
Step 111: 36410 + 331 = 36741
Step 112: 36741 + 331 = 37072
Step 113: 37072 + 331 = 37403
Step 114: 37403 + 331 = 37734
Step 115: 37734 + 331 = 38065
Step 116: 38065 + 331 = 38396
Step 117: 38396 + 331 = 38727
Step 118: 38727 + 331 = 39058
Step 119: 39058 + 331 = 39389
Step 120: 39389 + 331 = 39720
Step 121: 39720 + 331 = 40051
Step 122: 40051 + 331 = 40382
Step 123: 40382 + 331 = 40713
Step 124: 40713 + 331 = 41044
Step 125: 41044 + 331 = 41375
Step 126: 41375 + 331 = 41706
Step 127: 41706 + 331 = 42037
Step 128: 42037 + 331 = 42368
Step 129: 42368 + 331 = 42699
Step 130: 42699 + 331 = 43030
Step 131: 43030 + 331 = 43361
Step 132: 43361 + 331 = 43692
Step 133: 43692 + 331 = 44023
Step 134: 44023 + 331 = 44354
Step 135: 44354 + 331 = 44685
Step 136: 44685 + 331 = 45016
Step 137: 45016 + 331 = 45347
Step 138: 45347 + 331 = 45678
Step 139: 45678 + 331 = 46009
Step 140: 46009 + 331 = 46340
Step 141: 46340 + 331 = 46671
Step 142: 46671 + 331 = 47002
Step 143: 47002 + 331 = 47333
Step 144: 47333 + 331 = 47664
Step 145: 47664 + 331 = 47995
Step 146: 47995 + 331 = 48326
Step 147: 48326 + 331 = 48657
Step 148: 48657 + 331 = 48988
Step 149: 48988 + 331 = 49319
Step 150: 49319 + 331 = 49650
Step 151: 49650 + 331 = 49981
Step 152: 49981 + 331 = 50312
Step 153: 50312 + 331 = 50643
Step 154: 50643 + 331 = 50974
Step 155: 50974 + 331 = 51305
Step 156: 51305 + 331 = 51636
Step 157: 51636 + 331 = 51967
Step 158: 51967 + 331 = 52298
Step 159: 52298 + 331 = 52629
Step 160: 52629 + 331 = 52960
Step 161: 52960 + 331 = 53291
Step 162: 53291 + 331 = 53622
Step 163: 53622 + 331 = 53953
Step 164: 53953 + 331 = 54284
Step 165: 54284 + 331 = 54615
Step 166: 54615 + 331 = 54946
Step 167: 54946 + 331 = 55277
Step 168: 55277 + 331 = 55608
Step 169: 55608 + 331 = 55939
Step 170: 55939 + 331 = 56270
Step 171: 56270 + 331 = 56601
Step 172: 56601 + 331 = 56932
Step 173: 56932 + 331 = 57263
Step 174: 57263 + 331 = 57594
Step 175: 57594 + 331 = 57925
Step 176: 57925 + 331 = 58256
Step 177: 58256 + 331 = 58587
Step 178: 58587 + 331 = 58918
Step 179: 58918 + 331 = 59249
Step 180: 59249 + 331 = 59580
Step 181: 59580 + 331 = 59911
Step 182: 59911 + 331 = 60242
Step 183: 60242 + 331 = 60573
Step 184: 60573 + 331 = 60904
Step 185: 60904 + 331 = 61235
Step 186: 61235 + 331 = 61566
Step 187: 61566 + 331 = 61897
Step 188: 61897 + 331 = 62228
Step 189: 62228 + 331 = 62559
Step 190: 62559 + 331 = 62890
Step 191: 62890 + 331 = 63221
Step 192: 63221 + 331 = 63552
Step 193: 63552 + 331 = 63883
Step 194: 63883 + 331 = 64214
Step 195: 64214 + 331 = 64545
Step 196: 64545 + 331 = 64876
Step 197: 64876 + 331 = 65207
Step 198: 65207 + 331 = 65538
Step 199: 65538 + 331 = 65869
Step 200: 65869 + 331 = 66200
Step 201: 66200 + 331 = 66531
Step 202: 66531 + 331 = 66862
Step 203: 66862 + 331 = 67193
Step 204: 67193 + 331 = 67524
Step 205: 67524 + 331 = 67855
Step 206: 67855 + 331 = 68186
Step 207: 68186 + 331 = 68517
Step 208: 68517 + 331 = 68848
Step 209: 68848 + 331 = 69179
Step 210: 69179 + 331 = 69510
Step 211: 69510 + 331 = 69841
Step 212: 69841 + 331 = 70172
Step 213: 70172 + 331 = 70503
Step 214: 70503 + 331 = 70834
Step 215: 70834 + 331 = 71165
Step 216: 71165 + 331 = 71496
Step 217: 71496 + 331 = 71827
Step 218: 71827 + 331 = 72158
Step 219: 72158 + 331 = 72489
Step 220: 72489 + 331 = 72820

So, 331*220 = 72820