OK, let's work through this together. We're starting with 876 and we're going to multiply it by 432, which means we add 876 to itself 432 times.
Step 1: 0 + 876 = 876
Step 2: 876 + 876 = 1752
Step 3: 1752 + 876 = 2628
Step 4: 2628 + 876 = 3504
Step 5: 3504 + 876 = 4380
Step 6: 4380 + 876 = 5256
Step 7: 5256 + 876 = 6132
Step 8: 6132 + 876 = 7008
Step 9: 7008 + 876 = 7884
Step 10: 7884 + 876 = 8760
Step 11: 8760 + 876 = 9636
Step 12: 9636 + 876 = 10512
Step 13: 10512 + 876 = 11388
Step 14: 11388 + 876 = 12264
Step 15: 12264 + 876 = 13140
Step 16: 13140 + 876 = 14016
Step 17: 14016 + 876 = 14892
Step 18: 14892 + 876 = 15768
Step 19: 15768 + 876 = 16644
Step 20: 16644 + 876 = 17520
Step 21: 17520 + 876 = 18396
Step 22: 18396 + 876 = 19272
Step 23: 19272 + 876 = 20148
Step 24: 20148 + 876 = 21024
Step 25: 21024 + 876 = 21900
Step 26: 21900 + 876 = 22776
Step 27: 22776 + 876 = 23652
Step 28: 23652 + 876 = 24528
Step 29: 24528 + 876 = 25404
Step 30: 25404 + 876 = 26280
Step 31: 26280 + 876 = 27156
Step 32: 27156 + 876 = 28032
Step 33: 28032 + 876 = 28908
Step 34: 28908 + 876 = 29784
Step 35: 29784 + 876 = 30660
Step 36: 30660 + 876 = 31536
Step 37: 31536 + 876 = 32412
Step 38: 32412 + 876 = 33288
Step 39: 33288 + 876 = 34164
Step 40: 34164 + 876 = 35040
Step 41: 35040 + 876 = 35916
Step 42: 35916 + 876 = 36792
Step 43: 36792 + 876 = 37668
Step 44: 37668 + 876 = 38544
Step 45: 38544 + 876 = 39420
Step 46: 39420 + 876 = 40296
Step 47: 40296 + 876 = 41172
Step 48: 41172 + 876 = 42048
Step 49: 42048 + 876 = 42924
Step 50: 42924 + 876 = 43800
Step 51: 43800 + 876 = 44676
Step 52: 44676 + 876 = 45552
Step 53: 45552 + 876 = 46428
Step 54: 46428 + 876 = 47304
Step 55: 47304 + 876 = 48180
Step 56: 48180 + 876 = 49056
Step 57: 49056 + 876 = 49932
Step 58: 49932 + 876 = 50808
Step 59: 50808 + 876 = 51684
Step 60: 51684 + 876 = 52560
Step 61: 52560 + 876 = 53436
Step 62: 53436 + 876 = 54312
Step 63: 54312 + 876 = 55188
Step 64: 55188 + 876 = 56064
Step 65: 56064 + 876 = 56940
Step 66: 56940 + 876 = 57816
Step 67: 57816 + 876 = 58692
Step 68: 58692 + 876 = 59568
Step 69: 59568 + 876 = 60444
Step 70: 60444 + 876 = 61320
Step 71: 61320 + 876 = 62196
Step 72: 62196 + 876 = 63072
Step 73: 63072 + 876 = 63948
Step 74: 63948 + 876 = 64824
Step 75: 64824 + 876 = 65700
Step 76: 65700 + 876 = 66576
Step 77: 66576 + 876 = 67452
Step 78: 67452 + 876 = 68328
Step 79: 68328 + 876 = 69204
Step 80: 69204 + 876 = 70080
Step 81: 70080 + 876 = 70956
Step 82: 70956 + 876 = 71832
Step 83: 71832 + 876 = 72708
Step 84: 72708 + 876 = 73584
Step 85: 73584 + 876 = 74460
Step 86: 74460 + 876 = 75336
Step 87: 75336 + 876 = 76212
Step 88: 76212 + 876 = 77088
Step 89: 77088 + 876 = 77964
Step 90: 77964 + 876 = 78840
Step 91: 78840 + 876 = 79716
Step 92: 79716 + 876 = 80592
Step 93: 80592 + 876 = 81468
Step 94: 81468 + 876 = 82344
Step 95: 82344 + 876 = 83220
Step 96: 83220 + 876 = 84096
Step 97: 84096 + 876 = 84972
Step 98: 84972 + 876 = 85848
Step 99: 85848 + 876 = 86724
Step 100: 86724 + 876 = 87600
Step 101: 87600 + 876 = 88476
Step 102: 88476 + 876 = 89352
Step 103: 89352 + 876 = 90228
Step 104: 90228 + 876 = 91104
Step 105: 91104 + 876 = 91980
Step 106: 91980 + 876 = 92856
Step 107: 92856 + 876 = 93732
Step 108: 93732 + 876 = 94608
Step 109: 94608 + 876 = 95484
Step 110: 95484 + 876 = 96360
Step 111: 96360 + 876 = 97236
Step 112: 97236 + 876 = 98112
Step 113: 98112 + 876 = 98988
Step 114: 98988 + 876 = 99864
Step 115: 99864 + 876 = 100740
Step 116: 100740 + 876 = 101616
Step 117: 101616 + 876 = 102492
Step 118: 102492 + 876 = 103368
Step 119: 103368 + 876 = 104244
Step 120: 104244 + 876 = 105120
Step 121: 105120 + 876 = 105996
Step 122: 105996 + 876 = 106872
Step 123: 106872 + 876 = 107748
Step 124: 107748 + 876 = 108624
Step 125: 108624 + 876 = 109500
Step 126: 109500 + 876 = 110376
Step 127: 110376 + 876 = 111252
Step 128: 111252 + 876 = 112128
Step 129: 112128 + 876 = 113004
Step 130: 113004 + 876 = 113880
Step 131: 113880 + 876 = 114756
Step 132: 114756 + 876 = 115632
Step 133: 115632 + 876 = 116508
Step 134: 116508 + 876 = 117384
Step 135: 117384 + 876 = 118260
Step 136: 118260 + 876 = 119136
Step 137: 119136 + 876 = 120012
Step 138: 120012 + 876 = 120888
Step 139: 120888 + 876 = 121764
Step 140: 121764 + 876 = 122640
Step 141: 122640 + 876 = 123516
Step 142: 123516 + 876 = 124392
Step 143: 124392 + 876 = 125268
Step 144: 125268 + 876 = 126144
Step 145: 126144 + 876 = 127020
Step 146: 127020 + 876 = 127896
Step 147: 127896 + 876 = 128772
Step 148: 128772 + 876 = 129648
Step 149: 129648 + 876 = 130524
Step 150: 130524 + 876 = 131400
Step 151: 131400 + 876 = 132276
Step 152: 132276 + 876 = 133152
Step 153: 133152 + 876 = 134028
Step 154: 134028 + 876 = 134904
Step 155: 134904 + 876 = 135780
Step 156: 135780 + 876 = 136656
Step 157: 136656 + 876 = 137532
Step 158: 137532 + 876 = 138408
Step 159: 138408 + 876 = 139284
Step 160: 139284 + 876 = 140160
Step 161: 140160 + 876 = 141036
Step 162: 141036 + 876 = 141912
Step 163: 141912 + 876 = 142788
Step 164: 142788 + 876 = 143664
Step 165: 143664 + 876 = 144540
Step 166: 144540 + 876 = 145416
Step 167: 145416 + 876 = 146292
Step 168: 146292 + 876 = 147168
Step 169: 147168 + 876 = 148044
Step 170: 148044 + 876 = 148920
Step 171: 148920 + 876 = 149796
Step 172: 149796 + 876 = 150672
Step 173: 150672 + 876 = 151548
Step 174: 151548 + 876 = 152424
Step 175: 152424 + 876 = 153300
Step 176: 153300 + 876 = 154176
Step 177: 154176 + 876 = 155052
Step 178: 155052 + 876 = 155928
Step 179: 155928 + 876 = 156804
Step 180: 156804 + 876 = 157680
Step 181: 157680 + 876 = 158556
Step 182: 158556 + 876 = 159432
Step 183: 159432 + 876 = 160308
Step 184: 160308 + 876 = 161184
Step 185: 161184 + 876 = 162060
Step 186: 162060 + 876 = 162936
Step 187: 162936 + 876 = 163812
Step 188: 163812 + 876 = 164688
Step 189: 164688 + 876 = 165564
Step 190: 165564 + 876 = 166440
Step 191: 166440 + 876 = 167316
Step 192: 167316 + 876 = 168192
Step 193: 168192 + 876 = 169068
Step 194: 169068 + 876 = 169944
Step 195: 169944 + 876 = 170820
Step 196: 170820 + 876 = 171696
Step 197: 171696 + 876 = 172572
Step 198: 172572 + 876 = 173448
Step 199: 173448 + 876 = 174324
Step 200: 174324 + 876 = 175200
Step 201: 175200 + 876 = 176076
Step 202: 176076 + 876 = 176952
Step 203: 176952 + 876 = 177828
Step 204: 177828 + 876 = 178704
Step 205: 178704 + 876 = 179580
Step 206: 179580 + 876 = 180456
Step 207: 180456 + 876 = 181332
Step 208: 181332 + 876 = 182208
Step 209: 182208 + 876 = 183084
Step 210: 183084 + 876 = 183960
Step 211: 183960 + 876 = 184836
Step 212: 184836 + 876 = 185712
Step 213: 185712 + 876 = 186588
Step 214: 186588 + 876 = 187464
Step 215: 187464 + 876 = 188340
Step 216: 188340 + 876 = 189216
Step 217: 189216 + 876 = 190092
Step 218: 190092 + 876 = 190968
Step 219: 190968 + 876 = 191844
Step 220: 191844 + 876 = 192720
Step 221: 192720 + 876 = 193596
Step 222: 193596 + 876 = 194472
Step 223: 194472 + 876 = 195348
Step 224: 195348 + 876 = 196224
Step 225: 196224 + 876 = 197100
Step 226: 197100 + 876 = 197976
Step 227: 197976 + 876 = 198852
Step 228: 198852 + 876 = 199728
Step 229: 199728 + 876 = 200604
Step 230: 200604 + 876 = 201480
Step 231: 201480 + 876 = 202356
Step 232: 202356 + 876 = 203232
Step 233: 203232 + 876 = 204108
Step 234: 204108 + 876 = 204984
Step 235: 204984 + 876 = 205860
Step 236: 205860 + 876 = 206736
Step 237: 206736 + 876 = 207612
Step 238: 207612 + 876 = 208488
Step 239: 208488 + 876 = 209364
Step 240: 209364 + 876 = 210240
Step 241: 210240 + 876 = 211116
Step 242: 211116 + 876 = 211992
Step 243: 211992 + 876 = 212868
Step 244: 212868 + 876 = 213744
Step 245: 213744 + 876 = 214620
Step 246: 214620 + 876 = 215496
Step 247: 215496 + 876 = 216372
Step 248: 216372 + 876 = 217248
Step 249: 217248 + 876 = 218124
Step 250: 218124 + 876 = 219000
Step 251: 219000 + 876 = 219876
Step 252: 219876 + 876 = 220752
Step 253: 220752 + 876 = 221628
Step 254: 221628 + 876 = 222504
Step 255: 222504 + 876 = 223380
Step 256: 223380 + 876 = 224256
Step 257: 224256 + 876 = 225132
Step 258: 225132 + 876 = 226008
Step 259: 226008 + 876 = 226884
Step 260: 226884 + 876 = 227760
Step 261: 227760 + 876 = 228636
Step 262: 228636 + 876 = 229512
Step 263: 229512 + 876 = 230388
Step 264: 230388 + 876 = 231264
Step 265: 231264 + 876 = 232140
Step 266: 232140 + 876 = 233016
Step 267: 233016 + 876 = 233892
Step 268: 233892 + 876 = 234768
Step 269: 234768 + 876 = 235644
Step 270: 235644 + 876 = 236520
Step 271: 236520 + 876 = 237396
Step 272: 237396 + 876 = 238272
Step 273: 238272 + 876 = 239148
Step 274: 239148 + 876 = 240024
Step 275: 240024 + 876 = 240900
Step 276: 240900 + 876 = 241776
Step 277: 241776 + 876 = 242652
Step 278: 242652 + 876 = 243528
Step 279: 243528 + 876 = 244404
Step 280: 244404 + 876 = 245280
Step 281: 245280 + 876 = 246156
Step 282: 246156 + 876 = 247032
Step 283: 247032 + 876 = 247908
Step 284: 247908 + 876 = 248784
Step 285: 248784 + 876 = 249660
Step 286: 249660 + 876 = 250536
Step 287: 250536 + 876 = 251412
Step 288: 251412 + 876 = 252288
Step 289: 252288 + 876 = 253164
Step 290: 253164 + 876 = 254040
Step 291: 254040 + 876 = 254916
Step 292: 254916 + 876 = 255792
Step 293: 255792 + 876 = 256668
Step 294: 256668 + 876 = 257544
Step 295: 257544 + 876 = 258420
Step 296: 258420 + 876 = 259296
Step 297: 259296 + 876 = 260172
Step 298: 260172 + 876 = 261048
Step 299: 261048 + 876 = 261924
Step 300: 261924 + 876 = 262800
Step 301: 262800 + 876 = 263676
Step 302: 263676 + 876 = 264552
Step 303: 264552 + 876 = 265428
Step 304: 265428 + 876 = 266304
Step 305: 266304 + 876 = 267180
Step 306: 267180 + 876 = 268056
Step 307: 268056 + 876 = 268932
Step 308: 268932 + 876 = 269808
Step 309: 269808 + 876 = 270684
Step 310: 270684 + 876 = 271560
Step 311: 271560 + 876 = 272436
Step 312: 272436 + 876 = 273312
Step 313: 273312 + 876 = 274188
Step 314: 274188 + 876 = 275064
Step 315: 275064 + 876 = 275940
Step 316: 275940 + 876 = 276816
Step 317: 276816 + 876 = 277692
Step 318: 277692 + 876 = 278568
Step 319: 278568 + 876 = 279444
Step 320: 279444 + 876 = 280320
Step 321: 280320 + 876 = 281196
Step 322: 281196 + 876 = 282072
Step 323: 282072 + 876 = 282948
Step 324: 282948 + 876 = 283824
Step 325: 283824 + 876 = 284700
Step 326: 284700 + 876 = 285576
Step 327: 285576 + 876 = 286452
Step 328: 286452 + 876 = 287328
Step 329: 287328 + 876 = 288204
Step 330: 288204 + 876 = 289080
Step 331: 289080 + 876 = 289956
Step 332: 289956 + 876 = 290832
Step 333: 290832 + 876 = 291708
Step 334: 291708 + 876 = 292584
Step 335: 292584 + 876 = 293460
Step 336: 293460 + 876 = 294336
Step 337: 294336 + 876 = 295212
Step 338: 295212 + 876 = 296088
Step 339: 296088 + 876 = 296964
Step 340: 296964 + 876 = 297840
Step 341: 297840 + 876 = 298716
Step 342: 298716 + 876 = 299592
Step 343: 299592 + 876 = 300468
Step 344: 300468 + 876 = 301344
Step 345: 301344 + 876 = 302220
Step 346: 302220 + 876 = 303096
Step 347: 303096 + 876 = 303972
Step 348: 303972 + 876 = 304848
Step 349: 304848 + 876 = 305724
Step 350: 305724 + 876 = 306600
Step 351: 306600 + 876 = 307476
Step 352: 307476 + 876 = 308352
Step 353: 308352 + 876 = 309228
Step 354: 309228 + 876 = 310104
Step 355: 310104 + 876 = 310980
Step 356: 310980 + 876 = 311856
Step 357: 311856 + 876 = 312732
Step 358: 312732 + 876 = 313608
Step 359: 313608 + 876 = 314484
Step 360: 314484 + 876 = 315360
Step 361: 315360 + 876 = 316236
Step 362: 316236 + 876 = 317112
Step 363: 317112 + 876 = 317988
Step 364: 317988 + 876 = 318864
Step 365: 318864 + 876 = 319740
Step 366: 319740 + 876 = 320616
Step 367: 320616 + 876 = 321492
Step 368: 321492 + 876 = 322368
Step 369: 322368 + 876 = 323244
Step 370: 323244 + 876 = 324120
Step 371: 324120 + 876 = 324996
Step 372: 324996 + 876 = 325872
Step 373: 325872 + 876 = 326748
Step 374: 326748 + 876 = 327624
Step 375: 327624 + 876 = 328500
Step 376: 328500 + 876 = 329376
Step 377: 329376 + 876 = 330252
Step 378: 330252 + 876 = 331128
Step 379: 331128 + 876 = 332004
Step 380: 332004 + 876 = 332880
Step 381: 332880 + 876 = 333756
Step 382: 333756 + 876 = 334632
Step 383: 334632 + 876 = 335508
Step 384: 335508 + 876 = 336384
Step 385: 336384 + 876 = 337260
Step 386: 337260 + 876 = 338136
Step 387: 338136 + 876 = 339012
Step 388: 339012 + 876 = 339888
Step 389: 339888 + 876 = 340764
Step 390: 340764 + 876 = 341640
Step 391: 341640 + 876 = 342516
Step 392: 342516 + 876 = 343392
Step 393: 343392 + 876 = 344268
Step 394: 344268 + 876 = 345144
Step 395: 345144 + 876 = 346020
Step 396: 346020 + 876 = 346896
Step 397: 346896 + 876 = 347772
Step 398: 347772 + 876 = 348648
Step 399: 348648 + 876 = 349524
Step 400: 349524 + 876 = 350400
Step 401: 350400 + 876 = 351276
Step 402: 351276 + 876 = 352152
Step 403: 352152 + 876 = 353028
Step 404: 353028 + 876 = 353904
Step 405: 353904 + 876 = 354780
Step 406: 354780 + 876 = 355656
Step 407: 355656 + 876 = 356532
Step 408: 356532 + 876 = 357408
Step 409: 357408 + 876 = 358284
Step 410: 358284 + 876 = 359160
Step 411: 359160 + 876 = 360036
Step 412: 360036 + 876 = 360912
Step 413: 360912 + 876 = 361788
Step 414: 361788 + 876 = 362664
Step 415: 362664 + 876 = 363540
Step 416: 363540 + 876 = 364416
Step 417: 364416 + 876 = 365292
Step 418: 365292 + 876 = 366168
Step 419: 366168 + 876 = 367044
Step 420: 367044 + 876 = 367920
Step 421: 367920 + 876 = 368796
Step 422: 368796 + 876 = 369672
Step 423: 369672 + 876 = 370548
Step 424: 370548 + 876 = 371424
Step 425: 371424 + 876 = 372300
Step 426: 372300 + 876 = 373176
Step 427: 373176 + 876 = 374052
Step 428: 374052 + 876 = 374928
Step 429: 374928 + 876 = 375804
Step 430: 375804 + 876 = 376680
Step 431: 376680 + 876 = 377556
Step 432: 377556 + 876 = 378432

So, 876*432 = 378432