Without delay, let's solve this. We've got 712 and we will be multiplying it by 311, that is, adding 712 to itself 311 times.
Step 1: 0 + 712 = 712
Step 2: 712 + 712 = 1424
Step 3: 1424 + 712 = 2136
Step 4: 2136 + 712 = 2848
Step 5: 2848 + 712 = 3560
Step 6: 3560 + 712 = 4272
Step 7: 4272 + 712 = 4984
Step 8: 4984 + 712 = 5696
Step 9: 5696 + 712 = 6408
Step 10: 6408 + 712 = 7120
Step 11: 7120 + 712 = 7832
Step 12: 7832 + 712 = 8544
Step 13: 8544 + 712 = 9256
Step 14: 9256 + 712 = 9968
Step 15: 9968 + 712 = 10680
Step 16: 10680 + 712 = 11392
Step 17: 11392 + 712 = 12104
Step 18: 12104 + 712 = 12816
Step 19: 12816 + 712 = 13528
Step 20: 13528 + 712 = 14240
Step 21: 14240 + 712 = 14952
Step 22: 14952 + 712 = 15664
Step 23: 15664 + 712 = 16376
Step 24: 16376 + 712 = 17088
Step 25: 17088 + 712 = 17800
Step 26: 17800 + 712 = 18512
Step 27: 18512 + 712 = 19224
Step 28: 19224 + 712 = 19936
Step 29: 19936 + 712 = 20648
Step 30: 20648 + 712 = 21360
Step 31: 21360 + 712 = 22072
Step 32: 22072 + 712 = 22784
Step 33: 22784 + 712 = 23496
Step 34: 23496 + 712 = 24208
Step 35: 24208 + 712 = 24920
Step 36: 24920 + 712 = 25632
Step 37: 25632 + 712 = 26344
Step 38: 26344 + 712 = 27056
Step 39: 27056 + 712 = 27768
Step 40: 27768 + 712 = 28480
Step 41: 28480 + 712 = 29192
Step 42: 29192 + 712 = 29904
Step 43: 29904 + 712 = 30616
Step 44: 30616 + 712 = 31328
Step 45: 31328 + 712 = 32040
Step 46: 32040 + 712 = 32752
Step 47: 32752 + 712 = 33464
Step 48: 33464 + 712 = 34176
Step 49: 34176 + 712 = 34888
Step 50: 34888 + 712 = 35600
Step 51: 35600 + 712 = 36312
Step 52: 36312 + 712 = 37024
Step 53: 37024 + 712 = 37736
Step 54: 37736 + 712 = 38448
Step 55: 38448 + 712 = 39160
Step 56: 39160 + 712 = 39872
Step 57: 39872 + 712 = 40584
Step 58: 40584 + 712 = 41296
Step 59: 41296 + 712 = 42008
Step 60: 42008 + 712 = 42720
Step 61: 42720 + 712 = 43432
Step 62: 43432 + 712 = 44144
Step 63: 44144 + 712 = 44856
Step 64: 44856 + 712 = 45568
Step 65: 45568 + 712 = 46280
Step 66: 46280 + 712 = 46992
Step 67: 46992 + 712 = 47704
Step 68: 47704 + 712 = 48416
Step 69: 48416 + 712 = 49128
Step 70: 49128 + 712 = 49840
Step 71: 49840 + 712 = 50552
Step 72: 50552 + 712 = 51264
Step 73: 51264 + 712 = 51976
Step 74: 51976 + 712 = 52688
Step 75: 52688 + 712 = 53400
Step 76: 53400 + 712 = 54112
Step 77: 54112 + 712 = 54824
Step 78: 54824 + 712 = 55536
Step 79: 55536 + 712 = 56248
Step 80: 56248 + 712 = 56960
Step 81: 56960 + 712 = 57672
Step 82: 57672 + 712 = 58384
Step 83: 58384 + 712 = 59096
Step 84: 59096 + 712 = 59808
Step 85: 59808 + 712 = 60520
Step 86: 60520 + 712 = 61232
Step 87: 61232 + 712 = 61944
Step 88: 61944 + 712 = 62656
Step 89: 62656 + 712 = 63368
Step 90: 63368 + 712 = 64080
Step 91: 64080 + 712 = 64792
Step 92: 64792 + 712 = 65504
Step 93: 65504 + 712 = 66216
Step 94: 66216 + 712 = 66928
Step 95: 66928 + 712 = 67640
Step 96: 67640 + 712 = 68352
Step 97: 68352 + 712 = 69064
Step 98: 69064 + 712 = 69776
Step 99: 69776 + 712 = 70488
Step 100: 70488 + 712 = 71200
Step 101: 71200 + 712 = 71912
Step 102: 71912 + 712 = 72624
Step 103: 72624 + 712 = 73336
Step 104: 73336 + 712 = 74048
Step 105: 74048 + 712 = 74760
Step 106: 74760 + 712 = 75472
Step 107: 75472 + 712 = 76184
Step 108: 76184 + 712 = 76896
Step 109: 76896 + 712 = 77608
Step 110: 77608 + 712 = 78320
Step 111: 78320 + 712 = 79032
Step 112: 79032 + 712 = 79744
Step 113: 79744 + 712 = 80456
Step 114: 80456 + 712 = 81168
Step 115: 81168 + 712 = 81880
Step 116: 81880 + 712 = 82592
Step 117: 82592 + 712 = 83304
Step 118: 83304 + 712 = 84016
Step 119: 84016 + 712 = 84728
Step 120: 84728 + 712 = 85440
Step 121: 85440 + 712 = 86152
Step 122: 86152 + 712 = 86864
Step 123: 86864 + 712 = 87576
Step 124: 87576 + 712 = 88288
Step 125: 88288 + 712 = 89000
Step 126: 89000 + 712 = 89712
Step 127: 89712 + 712 = 90424
Step 128: 90424 + 712 = 91136
Step 129: 91136 + 712 = 91848
Step 130: 91848 + 712 = 92560
Step 131: 92560 + 712 = 93272
Step 132: 93272 + 712 = 93984
Step 133: 93984 + 712 = 94696
Step 134: 94696 + 712 = 95408
Step 135: 95408 + 712 = 96120
Step 136: 96120 + 712 = 96832
Step 137: 96832 + 712 = 97544
Step 138: 97544 + 712 = 98256
Step 139: 98256 + 712 = 98968
Step 140: 98968 + 712 = 99680
Step 141: 99680 + 712 = 100392
Step 142: 100392 + 712 = 101104
Step 143: 101104 + 712 = 101816
Step 144: 101816 + 712 = 102528
Step 145: 102528 + 712 = 103240
Step 146: 103240 + 712 = 103952
Step 147: 103952 + 712 = 104664
Step 148: 104664 + 712 = 105376
Step 149: 105376 + 712 = 106088
Step 150: 106088 + 712 = 106800
Step 151: 106800 + 712 = 107512
Step 152: 107512 + 712 = 108224
Step 153: 108224 + 712 = 108936
Step 154: 108936 + 712 = 109648
Step 155: 109648 + 712 = 110360
Step 156: 110360 + 712 = 111072
Step 157: 111072 + 712 = 111784
Step 158: 111784 + 712 = 112496
Step 159: 112496 + 712 = 113208
Step 160: 113208 + 712 = 113920
Step 161: 113920 + 712 = 114632
Step 162: 114632 + 712 = 115344
Step 163: 115344 + 712 = 116056
Step 164: 116056 + 712 = 116768
Step 165: 116768 + 712 = 117480
Step 166: 117480 + 712 = 118192
Step 167: 118192 + 712 = 118904
Step 168: 118904 + 712 = 119616
Step 169: 119616 + 712 = 120328
Step 170: 120328 + 712 = 121040
Step 171: 121040 + 712 = 121752
Step 172: 121752 + 712 = 122464
Step 173: 122464 + 712 = 123176
Step 174: 123176 + 712 = 123888
Step 175: 123888 + 712 = 124600
Step 176: 124600 + 712 = 125312
Step 177: 125312 + 712 = 126024
Step 178: 126024 + 712 = 126736
Step 179: 126736 + 712 = 127448
Step 180: 127448 + 712 = 128160
Step 181: 128160 + 712 = 128872
Step 182: 128872 + 712 = 129584
Step 183: 129584 + 712 = 130296
Step 184: 130296 + 712 = 131008
Step 185: 131008 + 712 = 131720
Step 186: 131720 + 712 = 132432
Step 187: 132432 + 712 = 133144
Step 188: 133144 + 712 = 133856
Step 189: 133856 + 712 = 134568
Step 190: 134568 + 712 = 135280
Step 191: 135280 + 712 = 135992
Step 192: 135992 + 712 = 136704
Step 193: 136704 + 712 = 137416
Step 194: 137416 + 712 = 138128
Step 195: 138128 + 712 = 138840
Step 196: 138840 + 712 = 139552
Step 197: 139552 + 712 = 140264
Step 198: 140264 + 712 = 140976
Step 199: 140976 + 712 = 141688
Step 200: 141688 + 712 = 142400
Step 201: 142400 + 712 = 143112
Step 202: 143112 + 712 = 143824
Step 203: 143824 + 712 = 144536
Step 204: 144536 + 712 = 145248
Step 205: 145248 + 712 = 145960
Step 206: 145960 + 712 = 146672
Step 207: 146672 + 712 = 147384
Step 208: 147384 + 712 = 148096
Step 209: 148096 + 712 = 148808
Step 210: 148808 + 712 = 149520
Step 211: 149520 + 712 = 150232
Step 212: 150232 + 712 = 150944
Step 213: 150944 + 712 = 151656
Step 214: 151656 + 712 = 152368
Step 215: 152368 + 712 = 153080
Step 216: 153080 + 712 = 153792
Step 217: 153792 + 712 = 154504
Step 218: 154504 + 712 = 155216
Step 219: 155216 + 712 = 155928
Step 220: 155928 + 712 = 156640
Step 221: 156640 + 712 = 157352
Step 222: 157352 + 712 = 158064
Step 223: 158064 + 712 = 158776
Step 224: 158776 + 712 = 159488
Step 225: 159488 + 712 = 160200
Step 226: 160200 + 712 = 160912
Step 227: 160912 + 712 = 161624
Step 228: 161624 + 712 = 162336
Step 229: 162336 + 712 = 163048
Step 230: 163048 + 712 = 163760
Step 231: 163760 + 712 = 164472
Step 232: 164472 + 712 = 165184
Step 233: 165184 + 712 = 165896
Step 234: 165896 + 712 = 166608
Step 235: 166608 + 712 = 167320
Step 236: 167320 + 712 = 168032
Step 237: 168032 + 712 = 168744
Step 238: 168744 + 712 = 169456
Step 239: 169456 + 712 = 170168
Step 240: 170168 + 712 = 170880
Step 241: 170880 + 712 = 171592
Step 242: 171592 + 712 = 172304
Step 243: 172304 + 712 = 173016
Step 244: 173016 + 712 = 173728
Step 245: 173728 + 712 = 174440
Step 246: 174440 + 712 = 175152
Step 247: 175152 + 712 = 175864
Step 248: 175864 + 712 = 176576
Step 249: 176576 + 712 = 177288
Step 250: 177288 + 712 = 178000
Step 251: 178000 + 712 = 178712
Step 252: 178712 + 712 = 179424
Step 253: 179424 + 712 = 180136
Step 254: 180136 + 712 = 180848
Step 255: 180848 + 712 = 181560
Step 256: 181560 + 712 = 182272
Step 257: 182272 + 712 = 182984
Step 258: 182984 + 712 = 183696
Step 259: 183696 + 712 = 184408
Step 260: 184408 + 712 = 185120
Step 261: 185120 + 712 = 185832
Step 262: 185832 + 712 = 186544
Step 263: 186544 + 712 = 187256
Step 264: 187256 + 712 = 187968
Step 265: 187968 + 712 = 188680
Step 266: 188680 + 712 = 189392
Step 267: 189392 + 712 = 190104
Step 268: 190104 + 712 = 190816
Step 269: 190816 + 712 = 191528
Step 270: 191528 + 712 = 192240
Step 271: 192240 + 712 = 192952
Step 272: 192952 + 712 = 193664
Step 273: 193664 + 712 = 194376
Step 274: 194376 + 712 = 195088
Step 275: 195088 + 712 = 195800
Step 276: 195800 + 712 = 196512
Step 277: 196512 + 712 = 197224
Step 278: 197224 + 712 = 197936
Step 279: 197936 + 712 = 198648
Step 280: 198648 + 712 = 199360
Step 281: 199360 + 712 = 200072
Step 282: 200072 + 712 = 200784
Step 283: 200784 + 712 = 201496
Step 284: 201496 + 712 = 202208
Step 285: 202208 + 712 = 202920
Step 286: 202920 + 712 = 203632
Step 287: 203632 + 712 = 204344
Step 288: 204344 + 712 = 205056
Step 289: 205056 + 712 = 205768
Step 290: 205768 + 712 = 206480
Step 291: 206480 + 712 = 207192
Step 292: 207192 + 712 = 207904
Step 293: 207904 + 712 = 208616
Step 294: 208616 + 712 = 209328
Step 295: 209328 + 712 = 210040
Step 296: 210040 + 712 = 210752
Step 297: 210752 + 712 = 211464
Step 298: 211464 + 712 = 212176
Step 299: 212176 + 712 = 212888
Step 300: 212888 + 712 = 213600
Step 301: 213600 + 712 = 214312
Step 302: 214312 + 712 = 215024
Step 303: 215024 + 712 = 215736
Step 304: 215736 + 712 = 216448
Step 305: 216448 + 712 = 217160
Step 306: 217160 + 712 = 217872
Step 307: 217872 + 712 = 218584
Step 308: 218584 + 712 = 219296
Step 309: 219296 + 712 = 220008
Step 310: 220008 + 712 = 220720
Step 311: 220720 + 712 = 221432

So, 712*311 = 221432