Let's roll up our sleeves and solve this. We have 541 and we're going to multiply it by 331, essentially adding 541 to itself 331 times.
Step 1: 0 + 541 = 541
Step 2: 541 + 541 = 1082
Step 3: 1082 + 541 = 1623
Step 4: 1623 + 541 = 2164
Step 5: 2164 + 541 = 2705
Step 6: 2705 + 541 = 3246
Step 7: 3246 + 541 = 3787
Step 8: 3787 + 541 = 4328
Step 9: 4328 + 541 = 4869
Step 10: 4869 + 541 = 5410
Step 11: 5410 + 541 = 5951
Step 12: 5951 + 541 = 6492
Step 13: 6492 + 541 = 7033
Step 14: 7033 + 541 = 7574
Step 15: 7574 + 541 = 8115
Step 16: 8115 + 541 = 8656
Step 17: 8656 + 541 = 9197
Step 18: 9197 + 541 = 9738
Step 19: 9738 + 541 = 10279
Step 20: 10279 + 541 = 10820
Step 21: 10820 + 541 = 11361
Step 22: 11361 + 541 = 11902
Step 23: 11902 + 541 = 12443
Step 24: 12443 + 541 = 12984
Step 25: 12984 + 541 = 13525
Step 26: 13525 + 541 = 14066
Step 27: 14066 + 541 = 14607
Step 28: 14607 + 541 = 15148
Step 29: 15148 + 541 = 15689
Step 30: 15689 + 541 = 16230
Step 31: 16230 + 541 = 16771
Step 32: 16771 + 541 = 17312
Step 33: 17312 + 541 = 17853
Step 34: 17853 + 541 = 18394
Step 35: 18394 + 541 = 18935
Step 36: 18935 + 541 = 19476
Step 37: 19476 + 541 = 20017
Step 38: 20017 + 541 = 20558
Step 39: 20558 + 541 = 21099
Step 40: 21099 + 541 = 21640
Step 41: 21640 + 541 = 22181
Step 42: 22181 + 541 = 22722
Step 43: 22722 + 541 = 23263
Step 44: 23263 + 541 = 23804
Step 45: 23804 + 541 = 24345
Step 46: 24345 + 541 = 24886
Step 47: 24886 + 541 = 25427
Step 48: 25427 + 541 = 25968
Step 49: 25968 + 541 = 26509
Step 50: 26509 + 541 = 27050
Step 51: 27050 + 541 = 27591
Step 52: 27591 + 541 = 28132
Step 53: 28132 + 541 = 28673
Step 54: 28673 + 541 = 29214
Step 55: 29214 + 541 = 29755
Step 56: 29755 + 541 = 30296
Step 57: 30296 + 541 = 30837
Step 58: 30837 + 541 = 31378
Step 59: 31378 + 541 = 31919
Step 60: 31919 + 541 = 32460
Step 61: 32460 + 541 = 33001
Step 62: 33001 + 541 = 33542
Step 63: 33542 + 541 = 34083
Step 64: 34083 + 541 = 34624
Step 65: 34624 + 541 = 35165
Step 66: 35165 + 541 = 35706
Step 67: 35706 + 541 = 36247
Step 68: 36247 + 541 = 36788
Step 69: 36788 + 541 = 37329
Step 70: 37329 + 541 = 37870
Step 71: 37870 + 541 = 38411
Step 72: 38411 + 541 = 38952
Step 73: 38952 + 541 = 39493
Step 74: 39493 + 541 = 40034
Step 75: 40034 + 541 = 40575
Step 76: 40575 + 541 = 41116
Step 77: 41116 + 541 = 41657
Step 78: 41657 + 541 = 42198
Step 79: 42198 + 541 = 42739
Step 80: 42739 + 541 = 43280
Step 81: 43280 + 541 = 43821
Step 82: 43821 + 541 = 44362
Step 83: 44362 + 541 = 44903
Step 84: 44903 + 541 = 45444
Step 85: 45444 + 541 = 45985
Step 86: 45985 + 541 = 46526
Step 87: 46526 + 541 = 47067
Step 88: 47067 + 541 = 47608
Step 89: 47608 + 541 = 48149
Step 90: 48149 + 541 = 48690
Step 91: 48690 + 541 = 49231
Step 92: 49231 + 541 = 49772
Step 93: 49772 + 541 = 50313
Step 94: 50313 + 541 = 50854
Step 95: 50854 + 541 = 51395
Step 96: 51395 + 541 = 51936
Step 97: 51936 + 541 = 52477
Step 98: 52477 + 541 = 53018
Step 99: 53018 + 541 = 53559
Step 100: 53559 + 541 = 54100
Step 101: 54100 + 541 = 54641
Step 102: 54641 + 541 = 55182
Step 103: 55182 + 541 = 55723
Step 104: 55723 + 541 = 56264
Step 105: 56264 + 541 = 56805
Step 106: 56805 + 541 = 57346
Step 107: 57346 + 541 = 57887
Step 108: 57887 + 541 = 58428
Step 109: 58428 + 541 = 58969
Step 110: 58969 + 541 = 59510
Step 111: 59510 + 541 = 60051
Step 112: 60051 + 541 = 60592
Step 113: 60592 + 541 = 61133
Step 114: 61133 + 541 = 61674
Step 115: 61674 + 541 = 62215
Step 116: 62215 + 541 = 62756
Step 117: 62756 + 541 = 63297
Step 118: 63297 + 541 = 63838
Step 119: 63838 + 541 = 64379
Step 120: 64379 + 541 = 64920
Step 121: 64920 + 541 = 65461
Step 122: 65461 + 541 = 66002
Step 123: 66002 + 541 = 66543
Step 124: 66543 + 541 = 67084
Step 125: 67084 + 541 = 67625
Step 126: 67625 + 541 = 68166
Step 127: 68166 + 541 = 68707
Step 128: 68707 + 541 = 69248
Step 129: 69248 + 541 = 69789
Step 130: 69789 + 541 = 70330
Step 131: 70330 + 541 = 70871
Step 132: 70871 + 541 = 71412
Step 133: 71412 + 541 = 71953
Step 134: 71953 + 541 = 72494
Step 135: 72494 + 541 = 73035
Step 136: 73035 + 541 = 73576
Step 137: 73576 + 541 = 74117
Step 138: 74117 + 541 = 74658
Step 139: 74658 + 541 = 75199
Step 140: 75199 + 541 = 75740
Step 141: 75740 + 541 = 76281
Step 142: 76281 + 541 = 76822
Step 143: 76822 + 541 = 77363
Step 144: 77363 + 541 = 77904
Step 145: 77904 + 541 = 78445
Step 146: 78445 + 541 = 78986
Step 147: 78986 + 541 = 79527
Step 148: 79527 + 541 = 80068
Step 149: 80068 + 541 = 80609
Step 150: 80609 + 541 = 81150
Step 151: 81150 + 541 = 81691
Step 152: 81691 + 541 = 82232
Step 153: 82232 + 541 = 82773
Step 154: 82773 + 541 = 83314
Step 155: 83314 + 541 = 83855
Step 156: 83855 + 541 = 84396
Step 157: 84396 + 541 = 84937
Step 158: 84937 + 541 = 85478
Step 159: 85478 + 541 = 86019
Step 160: 86019 + 541 = 86560
Step 161: 86560 + 541 = 87101
Step 162: 87101 + 541 = 87642
Step 163: 87642 + 541 = 88183
Step 164: 88183 + 541 = 88724
Step 165: 88724 + 541 = 89265
Step 166: 89265 + 541 = 89806
Step 167: 89806 + 541 = 90347
Step 168: 90347 + 541 = 90888
Step 169: 90888 + 541 = 91429
Step 170: 91429 + 541 = 91970
Step 171: 91970 + 541 = 92511
Step 172: 92511 + 541 = 93052
Step 173: 93052 + 541 = 93593
Step 174: 93593 + 541 = 94134
Step 175: 94134 + 541 = 94675
Step 176: 94675 + 541 = 95216
Step 177: 95216 + 541 = 95757
Step 178: 95757 + 541 = 96298
Step 179: 96298 + 541 = 96839
Step 180: 96839 + 541 = 97380
Step 181: 97380 + 541 = 97921
Step 182: 97921 + 541 = 98462
Step 183: 98462 + 541 = 99003
Step 184: 99003 + 541 = 99544
Step 185: 99544 + 541 = 100085
Step 186: 100085 + 541 = 100626
Step 187: 100626 + 541 = 101167
Step 188: 101167 + 541 = 101708
Step 189: 101708 + 541 = 102249
Step 190: 102249 + 541 = 102790
Step 191: 102790 + 541 = 103331
Step 192: 103331 + 541 = 103872
Step 193: 103872 + 541 = 104413
Step 194: 104413 + 541 = 104954
Step 195: 104954 + 541 = 105495
Step 196: 105495 + 541 = 106036
Step 197: 106036 + 541 = 106577
Step 198: 106577 + 541 = 107118
Step 199: 107118 + 541 = 107659
Step 200: 107659 + 541 = 108200
Step 201: 108200 + 541 = 108741
Step 202: 108741 + 541 = 109282
Step 203: 109282 + 541 = 109823
Step 204: 109823 + 541 = 110364
Step 205: 110364 + 541 = 110905
Step 206: 110905 + 541 = 111446
Step 207: 111446 + 541 = 111987
Step 208: 111987 + 541 = 112528
Step 209: 112528 + 541 = 113069
Step 210: 113069 + 541 = 113610
Step 211: 113610 + 541 = 114151
Step 212: 114151 + 541 = 114692
Step 213: 114692 + 541 = 115233
Step 214: 115233 + 541 = 115774
Step 215: 115774 + 541 = 116315
Step 216: 116315 + 541 = 116856
Step 217: 116856 + 541 = 117397
Step 218: 117397 + 541 = 117938
Step 219: 117938 + 541 = 118479
Step 220: 118479 + 541 = 119020
Step 221: 119020 + 541 = 119561
Step 222: 119561 + 541 = 120102
Step 223: 120102 + 541 = 120643
Step 224: 120643 + 541 = 121184
Step 225: 121184 + 541 = 121725
Step 226: 121725 + 541 = 122266
Step 227: 122266 + 541 = 122807
Step 228: 122807 + 541 = 123348
Step 229: 123348 + 541 = 123889
Step 230: 123889 + 541 = 124430
Step 231: 124430 + 541 = 124971
Step 232: 124971 + 541 = 125512
Step 233: 125512 + 541 = 126053
Step 234: 126053 + 541 = 126594
Step 235: 126594 + 541 = 127135
Step 236: 127135 + 541 = 127676
Step 237: 127676 + 541 = 128217
Step 238: 128217 + 541 = 128758
Step 239: 128758 + 541 = 129299
Step 240: 129299 + 541 = 129840
Step 241: 129840 + 541 = 130381
Step 242: 130381 + 541 = 130922
Step 243: 130922 + 541 = 131463
Step 244: 131463 + 541 = 132004
Step 245: 132004 + 541 = 132545
Step 246: 132545 + 541 = 133086
Step 247: 133086 + 541 = 133627
Step 248: 133627 + 541 = 134168
Step 249: 134168 + 541 = 134709
Step 250: 134709 + 541 = 135250
Step 251: 135250 + 541 = 135791
Step 252: 135791 + 541 = 136332
Step 253: 136332 + 541 = 136873
Step 254: 136873 + 541 = 137414
Step 255: 137414 + 541 = 137955
Step 256: 137955 + 541 = 138496
Step 257: 138496 + 541 = 139037
Step 258: 139037 + 541 = 139578
Step 259: 139578 + 541 = 140119
Step 260: 140119 + 541 = 140660
Step 261: 140660 + 541 = 141201
Step 262: 141201 + 541 = 141742
Step 263: 141742 + 541 = 142283
Step 264: 142283 + 541 = 142824
Step 265: 142824 + 541 = 143365
Step 266: 143365 + 541 = 143906
Step 267: 143906 + 541 = 144447
Step 268: 144447 + 541 = 144988
Step 269: 144988 + 541 = 145529
Step 270: 145529 + 541 = 146070
Step 271: 146070 + 541 = 146611
Step 272: 146611 + 541 = 147152
Step 273: 147152 + 541 = 147693
Step 274: 147693 + 541 = 148234
Step 275: 148234 + 541 = 148775
Step 276: 148775 + 541 = 149316
Step 277: 149316 + 541 = 149857
Step 278: 149857 + 541 = 150398
Step 279: 150398 + 541 = 150939
Step 280: 150939 + 541 = 151480
Step 281: 151480 + 541 = 152021
Step 282: 152021 + 541 = 152562
Step 283: 152562 + 541 = 153103
Step 284: 153103 + 541 = 153644
Step 285: 153644 + 541 = 154185
Step 286: 154185 + 541 = 154726
Step 287: 154726 + 541 = 155267
Step 288: 155267 + 541 = 155808
Step 289: 155808 + 541 = 156349
Step 290: 156349 + 541 = 156890
Step 291: 156890 + 541 = 157431
Step 292: 157431 + 541 = 157972
Step 293: 157972 + 541 = 158513
Step 294: 158513 + 541 = 159054
Step 295: 159054 + 541 = 159595
Step 296: 159595 + 541 = 160136
Step 297: 160136 + 541 = 160677
Step 298: 160677 + 541 = 161218
Step 299: 161218 + 541 = 161759
Step 300: 161759 + 541 = 162300
Step 301: 162300 + 541 = 162841
Step 302: 162841 + 541 = 163382
Step 303: 163382 + 541 = 163923
Step 304: 163923 + 541 = 164464
Step 305: 164464 + 541 = 165005
Step 306: 165005 + 541 = 165546
Step 307: 165546 + 541 = 166087
Step 308: 166087 + 541 = 166628
Step 309: 166628 + 541 = 167169
Step 310: 167169 + 541 = 167710
Step 311: 167710 + 541 = 168251
Step 312: 168251 + 541 = 168792
Step 313: 168792 + 541 = 169333
Step 314: 169333 + 541 = 169874
Step 315: 169874 + 541 = 170415
Step 316: 170415 + 541 = 170956
Step 317: 170956 + 541 = 171497
Step 318: 171497 + 541 = 172038
Step 319: 172038 + 541 = 172579
Step 320: 172579 + 541 = 173120
Step 321: 173120 + 541 = 173661
Step 322: 173661 + 541 = 174202
Step 323: 174202 + 541 = 174743
Step 324: 174743 + 541 = 175284
Step 325: 175284 + 541 = 175825
Step 326: 175825 + 541 = 176366
Step 327: 176366 + 541 = 176907
Step 328: 176907 + 541 = 177448
Step 329: 177448 + 541 = 177989
Step 330: 177989 + 541 = 178530
Step 331: 178530 + 541 = 179071

So, 541*331 = 179071