Alright, let's solve this math problem step by step. First, we have the number 391. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 340. So, we're going to take the number 391 and add it to itself 340 times.
Step 1: 0 + 391 = 391
Step 2: 391 + 391 = 782
Step 3: 782 + 391 = 1173
Step 4: 1173 + 391 = 1564
Step 5: 1564 + 391 = 1955
Step 6: 1955 + 391 = 2346
Step 7: 2346 + 391 = 2737
Step 8: 2737 + 391 = 3128
Step 9: 3128 + 391 = 3519
Step 10: 3519 + 391 = 3910
Step 11: 3910 + 391 = 4301
Step 12: 4301 + 391 = 4692
Step 13: 4692 + 391 = 5083
Step 14: 5083 + 391 = 5474
Step 15: 5474 + 391 = 5865
Step 16: 5865 + 391 = 6256
Step 17: 6256 + 391 = 6647
Step 18: 6647 + 391 = 7038
Step 19: 7038 + 391 = 7429
Step 20: 7429 + 391 = 7820
Step 21: 7820 + 391 = 8211
Step 22: 8211 + 391 = 8602
Step 23: 8602 + 391 = 8993
Step 24: 8993 + 391 = 9384
Step 25: 9384 + 391 = 9775
Step 26: 9775 + 391 = 10166
Step 27: 10166 + 391 = 10557
Step 28: 10557 + 391 = 10948
Step 29: 10948 + 391 = 11339
Step 30: 11339 + 391 = 11730
Step 31: 11730 + 391 = 12121
Step 32: 12121 + 391 = 12512
Step 33: 12512 + 391 = 12903
Step 34: 12903 + 391 = 13294
Step 35: 13294 + 391 = 13685
Step 36: 13685 + 391 = 14076
Step 37: 14076 + 391 = 14467
Step 38: 14467 + 391 = 14858
Step 39: 14858 + 391 = 15249
Step 40: 15249 + 391 = 15640
Step 41: 15640 + 391 = 16031
Step 42: 16031 + 391 = 16422
Step 43: 16422 + 391 = 16813
Step 44: 16813 + 391 = 17204
Step 45: 17204 + 391 = 17595
Step 46: 17595 + 391 = 17986
Step 47: 17986 + 391 = 18377
Step 48: 18377 + 391 = 18768
Step 49: 18768 + 391 = 19159
Step 50: 19159 + 391 = 19550
Step 51: 19550 + 391 = 19941
Step 52: 19941 + 391 = 20332
Step 53: 20332 + 391 = 20723
Step 54: 20723 + 391 = 21114
Step 55: 21114 + 391 = 21505
Step 56: 21505 + 391 = 21896
Step 57: 21896 + 391 = 22287
Step 58: 22287 + 391 = 22678
Step 59: 22678 + 391 = 23069
Step 60: 23069 + 391 = 23460
Step 61: 23460 + 391 = 23851
Step 62: 23851 + 391 = 24242
Step 63: 24242 + 391 = 24633
Step 64: 24633 + 391 = 25024
Step 65: 25024 + 391 = 25415
Step 66: 25415 + 391 = 25806
Step 67: 25806 + 391 = 26197
Step 68: 26197 + 391 = 26588
Step 69: 26588 + 391 = 26979
Step 70: 26979 + 391 = 27370
Step 71: 27370 + 391 = 27761
Step 72: 27761 + 391 = 28152
Step 73: 28152 + 391 = 28543
Step 74: 28543 + 391 = 28934
Step 75: 28934 + 391 = 29325
Step 76: 29325 + 391 = 29716
Step 77: 29716 + 391 = 30107
Step 78: 30107 + 391 = 30498
Step 79: 30498 + 391 = 30889
Step 80: 30889 + 391 = 31280
Step 81: 31280 + 391 = 31671
Step 82: 31671 + 391 = 32062
Step 83: 32062 + 391 = 32453
Step 84: 32453 + 391 = 32844
Step 85: 32844 + 391 = 33235
Step 86: 33235 + 391 = 33626
Step 87: 33626 + 391 = 34017
Step 88: 34017 + 391 = 34408
Step 89: 34408 + 391 = 34799
Step 90: 34799 + 391 = 35190
Step 91: 35190 + 391 = 35581
Step 92: 35581 + 391 = 35972
Step 93: 35972 + 391 = 36363
Step 94: 36363 + 391 = 36754
Step 95: 36754 + 391 = 37145
Step 96: 37145 + 391 = 37536
Step 97: 37536 + 391 = 37927
Step 98: 37927 + 391 = 38318
Step 99: 38318 + 391 = 38709
Step 100: 38709 + 391 = 39100
Step 101: 39100 + 391 = 39491
Step 102: 39491 + 391 = 39882
Step 103: 39882 + 391 = 40273
Step 104: 40273 + 391 = 40664
Step 105: 40664 + 391 = 41055
Step 106: 41055 + 391 = 41446
Step 107: 41446 + 391 = 41837
Step 108: 41837 + 391 = 42228
Step 109: 42228 + 391 = 42619
Step 110: 42619 + 391 = 43010
Step 111: 43010 + 391 = 43401
Step 112: 43401 + 391 = 43792
Step 113: 43792 + 391 = 44183
Step 114: 44183 + 391 = 44574
Step 115: 44574 + 391 = 44965
Step 116: 44965 + 391 = 45356
Step 117: 45356 + 391 = 45747
Step 118: 45747 + 391 = 46138
Step 119: 46138 + 391 = 46529
Step 120: 46529 + 391 = 46920
Step 121: 46920 + 391 = 47311
Step 122: 47311 + 391 = 47702
Step 123: 47702 + 391 = 48093
Step 124: 48093 + 391 = 48484
Step 125: 48484 + 391 = 48875
Step 126: 48875 + 391 = 49266
Step 127: 49266 + 391 = 49657
Step 128: 49657 + 391 = 50048
Step 129: 50048 + 391 = 50439
Step 130: 50439 + 391 = 50830
Step 131: 50830 + 391 = 51221
Step 132: 51221 + 391 = 51612
Step 133: 51612 + 391 = 52003
Step 134: 52003 + 391 = 52394
Step 135: 52394 + 391 = 52785
Step 136: 52785 + 391 = 53176
Step 137: 53176 + 391 = 53567
Step 138: 53567 + 391 = 53958
Step 139: 53958 + 391 = 54349
Step 140: 54349 + 391 = 54740
Step 141: 54740 + 391 = 55131
Step 142: 55131 + 391 = 55522
Step 143: 55522 + 391 = 55913
Step 144: 55913 + 391 = 56304
Step 145: 56304 + 391 = 56695
Step 146: 56695 + 391 = 57086
Step 147: 57086 + 391 = 57477
Step 148: 57477 + 391 = 57868
Step 149: 57868 + 391 = 58259
Step 150: 58259 + 391 = 58650
Step 151: 58650 + 391 = 59041
Step 152: 59041 + 391 = 59432
Step 153: 59432 + 391 = 59823
Step 154: 59823 + 391 = 60214
Step 155: 60214 + 391 = 60605
Step 156: 60605 + 391 = 60996
Step 157: 60996 + 391 = 61387
Step 158: 61387 + 391 = 61778
Step 159: 61778 + 391 = 62169
Step 160: 62169 + 391 = 62560
Step 161: 62560 + 391 = 62951
Step 162: 62951 + 391 = 63342
Step 163: 63342 + 391 = 63733
Step 164: 63733 + 391 = 64124
Step 165: 64124 + 391 = 64515
Step 166: 64515 + 391 = 64906
Step 167: 64906 + 391 = 65297
Step 168: 65297 + 391 = 65688
Step 169: 65688 + 391 = 66079
Step 170: 66079 + 391 = 66470
Step 171: 66470 + 391 = 66861
Step 172: 66861 + 391 = 67252
Step 173: 67252 + 391 = 67643
Step 174: 67643 + 391 = 68034
Step 175: 68034 + 391 = 68425
Step 176: 68425 + 391 = 68816
Step 177: 68816 + 391 = 69207
Step 178: 69207 + 391 = 69598
Step 179: 69598 + 391 = 69989
Step 180: 69989 + 391 = 70380
Step 181: 70380 + 391 = 70771
Step 182: 70771 + 391 = 71162
Step 183: 71162 + 391 = 71553
Step 184: 71553 + 391 = 71944
Step 185: 71944 + 391 = 72335
Step 186: 72335 + 391 = 72726
Step 187: 72726 + 391 = 73117
Step 188: 73117 + 391 = 73508
Step 189: 73508 + 391 = 73899
Step 190: 73899 + 391 = 74290
Step 191: 74290 + 391 = 74681
Step 192: 74681 + 391 = 75072
Step 193: 75072 + 391 = 75463
Step 194: 75463 + 391 = 75854
Step 195: 75854 + 391 = 76245
Step 196: 76245 + 391 = 76636
Step 197: 76636 + 391 = 77027
Step 198: 77027 + 391 = 77418
Step 199: 77418 + 391 = 77809
Step 200: 77809 + 391 = 78200
Step 201: 78200 + 391 = 78591
Step 202: 78591 + 391 = 78982
Step 203: 78982 + 391 = 79373
Step 204: 79373 + 391 = 79764
Step 205: 79764 + 391 = 80155
Step 206: 80155 + 391 = 80546
Step 207: 80546 + 391 = 80937
Step 208: 80937 + 391 = 81328
Step 209: 81328 + 391 = 81719
Step 210: 81719 + 391 = 82110
Step 211: 82110 + 391 = 82501
Step 212: 82501 + 391 = 82892
Step 213: 82892 + 391 = 83283
Step 214: 83283 + 391 = 83674
Step 215: 83674 + 391 = 84065
Step 216: 84065 + 391 = 84456
Step 217: 84456 + 391 = 84847
Step 218: 84847 + 391 = 85238
Step 219: 85238 + 391 = 85629
Step 220: 85629 + 391 = 86020
Step 221: 86020 + 391 = 86411
Step 222: 86411 + 391 = 86802
Step 223: 86802 + 391 = 87193
Step 224: 87193 + 391 = 87584
Step 225: 87584 + 391 = 87975
Step 226: 87975 + 391 = 88366
Step 227: 88366 + 391 = 88757
Step 228: 88757 + 391 = 89148
Step 229: 89148 + 391 = 89539
Step 230: 89539 + 391 = 89930
Step 231: 89930 + 391 = 90321
Step 232: 90321 + 391 = 90712
Step 233: 90712 + 391 = 91103
Step 234: 91103 + 391 = 91494
Step 235: 91494 + 391 = 91885
Step 236: 91885 + 391 = 92276
Step 237: 92276 + 391 = 92667
Step 238: 92667 + 391 = 93058
Step 239: 93058 + 391 = 93449
Step 240: 93449 + 391 = 93840
Step 241: 93840 + 391 = 94231
Step 242: 94231 + 391 = 94622
Step 243: 94622 + 391 = 95013
Step 244: 95013 + 391 = 95404
Step 245: 95404 + 391 = 95795
Step 246: 95795 + 391 = 96186
Step 247: 96186 + 391 = 96577
Step 248: 96577 + 391 = 96968
Step 249: 96968 + 391 = 97359
Step 250: 97359 + 391 = 97750
Step 251: 97750 + 391 = 98141
Step 252: 98141 + 391 = 98532
Step 253: 98532 + 391 = 98923
Step 254: 98923 + 391 = 99314
Step 255: 99314 + 391 = 99705
Step 256: 99705 + 391 = 100096
Step 257: 100096 + 391 = 100487
Step 258: 100487 + 391 = 100878
Step 259: 100878 + 391 = 101269
Step 260: 101269 + 391 = 101660
Step 261: 101660 + 391 = 102051
Step 262: 102051 + 391 = 102442
Step 263: 102442 + 391 = 102833
Step 264: 102833 + 391 = 103224
Step 265: 103224 + 391 = 103615
Step 266: 103615 + 391 = 104006
Step 267: 104006 + 391 = 104397
Step 268: 104397 + 391 = 104788
Step 269: 104788 + 391 = 105179
Step 270: 105179 + 391 = 105570
Step 271: 105570 + 391 = 105961
Step 272: 105961 + 391 = 106352
Step 273: 106352 + 391 = 106743
Step 274: 106743 + 391 = 107134
Step 275: 107134 + 391 = 107525
Step 276: 107525 + 391 = 107916
Step 277: 107916 + 391 = 108307
Step 278: 108307 + 391 = 108698
Step 279: 108698 + 391 = 109089
Step 280: 109089 + 391 = 109480
Step 281: 109480 + 391 = 109871
Step 282: 109871 + 391 = 110262
Step 283: 110262 + 391 = 110653
Step 284: 110653 + 391 = 111044
Step 285: 111044 + 391 = 111435
Step 286: 111435 + 391 = 111826
Step 287: 111826 + 391 = 112217
Step 288: 112217 + 391 = 112608
Step 289: 112608 + 391 = 112999
Step 290: 112999 + 391 = 113390
Step 291: 113390 + 391 = 113781
Step 292: 113781 + 391 = 114172
Step 293: 114172 + 391 = 114563
Step 294: 114563 + 391 = 114954
Step 295: 114954 + 391 = 115345
Step 296: 115345 + 391 = 115736
Step 297: 115736 + 391 = 116127
Step 298: 116127 + 391 = 116518
Step 299: 116518 + 391 = 116909
Step 300: 116909 + 391 = 117300
Step 301: 117300 + 391 = 117691
Step 302: 117691 + 391 = 118082
Step 303: 118082 + 391 = 118473
Step 304: 118473 + 391 = 118864
Step 305: 118864 + 391 = 119255
Step 306: 119255 + 391 = 119646
Step 307: 119646 + 391 = 120037
Step 308: 120037 + 391 = 120428
Step 309: 120428 + 391 = 120819
Step 310: 120819 + 391 = 121210
Step 311: 121210 + 391 = 121601
Step 312: 121601 + 391 = 121992
Step 313: 121992 + 391 = 122383
Step 314: 122383 + 391 = 122774
Step 315: 122774 + 391 = 123165
Step 316: 123165 + 391 = 123556
Step 317: 123556 + 391 = 123947
Step 318: 123947 + 391 = 124338
Step 319: 124338 + 391 = 124729
Step 320: 124729 + 391 = 125120
Step 321: 125120 + 391 = 125511
Step 322: 125511 + 391 = 125902
Step 323: 125902 + 391 = 126293
Step 324: 126293 + 391 = 126684
Step 325: 126684 + 391 = 127075
Step 326: 127075 + 391 = 127466
Step 327: 127466 + 391 = 127857
Step 328: 127857 + 391 = 128248
Step 329: 128248 + 391 = 128639
Step 330: 128639 + 391 = 129030
Step 331: 129030 + 391 = 129421
Step 332: 129421 + 391 = 129812
Step 333: 129812 + 391 = 130203
Step 334: 130203 + 391 = 130594
Step 335: 130594 + 391 = 130985
Step 336: 130985 + 391 = 131376
Step 337: 131376 + 391 = 131767
Step 338: 131767 + 391 = 132158
Step 339: 132158 + 391 = 132549
Step 340: 132549 + 391 = 132940

So, 391*340 = 132940