Without delay, let's solve this. We've got 432 and we will be multiplying it by 336, that is, adding 432 to itself 336 times.
Step 1: 0 + 432 = 432
Step 2: 432 + 432 = 864
Step 3: 864 + 432 = 1296
Step 4: 1296 + 432 = 1728
Step 5: 1728 + 432 = 2160
Step 6: 2160 + 432 = 2592
Step 7: 2592 + 432 = 3024
Step 8: 3024 + 432 = 3456
Step 9: 3456 + 432 = 3888
Step 10: 3888 + 432 = 4320
Step 11: 4320 + 432 = 4752
Step 12: 4752 + 432 = 5184
Step 13: 5184 + 432 = 5616
Step 14: 5616 + 432 = 6048
Step 15: 6048 + 432 = 6480
Step 16: 6480 + 432 = 6912
Step 17: 6912 + 432 = 7344
Step 18: 7344 + 432 = 7776
Step 19: 7776 + 432 = 8208
Step 20: 8208 + 432 = 8640
Step 21: 8640 + 432 = 9072
Step 22: 9072 + 432 = 9504
Step 23: 9504 + 432 = 9936
Step 24: 9936 + 432 = 10368
Step 25: 10368 + 432 = 10800
Step 26: 10800 + 432 = 11232
Step 27: 11232 + 432 = 11664
Step 28: 11664 + 432 = 12096
Step 29: 12096 + 432 = 12528
Step 30: 12528 + 432 = 12960
Step 31: 12960 + 432 = 13392
Step 32: 13392 + 432 = 13824
Step 33: 13824 + 432 = 14256
Step 34: 14256 + 432 = 14688
Step 35: 14688 + 432 = 15120
Step 36: 15120 + 432 = 15552
Step 37: 15552 + 432 = 15984
Step 38: 15984 + 432 = 16416
Step 39: 16416 + 432 = 16848
Step 40: 16848 + 432 = 17280
Step 41: 17280 + 432 = 17712
Step 42: 17712 + 432 = 18144
Step 43: 18144 + 432 = 18576
Step 44: 18576 + 432 = 19008
Step 45: 19008 + 432 = 19440
Step 46: 19440 + 432 = 19872
Step 47: 19872 + 432 = 20304
Step 48: 20304 + 432 = 20736
Step 49: 20736 + 432 = 21168
Step 50: 21168 + 432 = 21600
Step 51: 21600 + 432 = 22032
Step 52: 22032 + 432 = 22464
Step 53: 22464 + 432 = 22896
Step 54: 22896 + 432 = 23328
Step 55: 23328 + 432 = 23760
Step 56: 23760 + 432 = 24192
Step 57: 24192 + 432 = 24624
Step 58: 24624 + 432 = 25056
Step 59: 25056 + 432 = 25488
Step 60: 25488 + 432 = 25920
Step 61: 25920 + 432 = 26352
Step 62: 26352 + 432 = 26784
Step 63: 26784 + 432 = 27216
Step 64: 27216 + 432 = 27648
Step 65: 27648 + 432 = 28080
Step 66: 28080 + 432 = 28512
Step 67: 28512 + 432 = 28944
Step 68: 28944 + 432 = 29376
Step 69: 29376 + 432 = 29808
Step 70: 29808 + 432 = 30240
Step 71: 30240 + 432 = 30672
Step 72: 30672 + 432 = 31104
Step 73: 31104 + 432 = 31536
Step 74: 31536 + 432 = 31968
Step 75: 31968 + 432 = 32400
Step 76: 32400 + 432 = 32832
Step 77: 32832 + 432 = 33264
Step 78: 33264 + 432 = 33696
Step 79: 33696 + 432 = 34128
Step 80: 34128 + 432 = 34560
Step 81: 34560 + 432 = 34992
Step 82: 34992 + 432 = 35424
Step 83: 35424 + 432 = 35856
Step 84: 35856 + 432 = 36288
Step 85: 36288 + 432 = 36720
Step 86: 36720 + 432 = 37152
Step 87: 37152 + 432 = 37584
Step 88: 37584 + 432 = 38016
Step 89: 38016 + 432 = 38448
Step 90: 38448 + 432 = 38880
Step 91: 38880 + 432 = 39312
Step 92: 39312 + 432 = 39744
Step 93: 39744 + 432 = 40176
Step 94: 40176 + 432 = 40608
Step 95: 40608 + 432 = 41040
Step 96: 41040 + 432 = 41472
Step 97: 41472 + 432 = 41904
Step 98: 41904 + 432 = 42336
Step 99: 42336 + 432 = 42768
Step 100: 42768 + 432 = 43200
Step 101: 43200 + 432 = 43632
Step 102: 43632 + 432 = 44064
Step 103: 44064 + 432 = 44496
Step 104: 44496 + 432 = 44928
Step 105: 44928 + 432 = 45360
Step 106: 45360 + 432 = 45792
Step 107: 45792 + 432 = 46224
Step 108: 46224 + 432 = 46656
Step 109: 46656 + 432 = 47088
Step 110: 47088 + 432 = 47520
Step 111: 47520 + 432 = 47952
Step 112: 47952 + 432 = 48384
Step 113: 48384 + 432 = 48816
Step 114: 48816 + 432 = 49248
Step 115: 49248 + 432 = 49680
Step 116: 49680 + 432 = 50112
Step 117: 50112 + 432 = 50544
Step 118: 50544 + 432 = 50976
Step 119: 50976 + 432 = 51408
Step 120: 51408 + 432 = 51840
Step 121: 51840 + 432 = 52272
Step 122: 52272 + 432 = 52704
Step 123: 52704 + 432 = 53136
Step 124: 53136 + 432 = 53568
Step 125: 53568 + 432 = 54000
Step 126: 54000 + 432 = 54432
Step 127: 54432 + 432 = 54864
Step 128: 54864 + 432 = 55296
Step 129: 55296 + 432 = 55728
Step 130: 55728 + 432 = 56160
Step 131: 56160 + 432 = 56592
Step 132: 56592 + 432 = 57024
Step 133: 57024 + 432 = 57456
Step 134: 57456 + 432 = 57888
Step 135: 57888 + 432 = 58320
Step 136: 58320 + 432 = 58752
Step 137: 58752 + 432 = 59184
Step 138: 59184 + 432 = 59616
Step 139: 59616 + 432 = 60048
Step 140: 60048 + 432 = 60480
Step 141: 60480 + 432 = 60912
Step 142: 60912 + 432 = 61344
Step 143: 61344 + 432 = 61776
Step 144: 61776 + 432 = 62208
Step 145: 62208 + 432 = 62640
Step 146: 62640 + 432 = 63072
Step 147: 63072 + 432 = 63504
Step 148: 63504 + 432 = 63936
Step 149: 63936 + 432 = 64368
Step 150: 64368 + 432 = 64800
Step 151: 64800 + 432 = 65232
Step 152: 65232 + 432 = 65664
Step 153: 65664 + 432 = 66096
Step 154: 66096 + 432 = 66528
Step 155: 66528 + 432 = 66960
Step 156: 66960 + 432 = 67392
Step 157: 67392 + 432 = 67824
Step 158: 67824 + 432 = 68256
Step 159: 68256 + 432 = 68688
Step 160: 68688 + 432 = 69120
Step 161: 69120 + 432 = 69552
Step 162: 69552 + 432 = 69984
Step 163: 69984 + 432 = 70416
Step 164: 70416 + 432 = 70848
Step 165: 70848 + 432 = 71280
Step 166: 71280 + 432 = 71712
Step 167: 71712 + 432 = 72144
Step 168: 72144 + 432 = 72576
Step 169: 72576 + 432 = 73008
Step 170: 73008 + 432 = 73440
Step 171: 73440 + 432 = 73872
Step 172: 73872 + 432 = 74304
Step 173: 74304 + 432 = 74736
Step 174: 74736 + 432 = 75168
Step 175: 75168 + 432 = 75600
Step 176: 75600 + 432 = 76032
Step 177: 76032 + 432 = 76464
Step 178: 76464 + 432 = 76896
Step 179: 76896 + 432 = 77328
Step 180: 77328 + 432 = 77760
Step 181: 77760 + 432 = 78192
Step 182: 78192 + 432 = 78624
Step 183: 78624 + 432 = 79056
Step 184: 79056 + 432 = 79488
Step 185: 79488 + 432 = 79920
Step 186: 79920 + 432 = 80352
Step 187: 80352 + 432 = 80784
Step 188: 80784 + 432 = 81216
Step 189: 81216 + 432 = 81648
Step 190: 81648 + 432 = 82080
Step 191: 82080 + 432 = 82512
Step 192: 82512 + 432 = 82944
Step 193: 82944 + 432 = 83376
Step 194: 83376 + 432 = 83808
Step 195: 83808 + 432 = 84240
Step 196: 84240 + 432 = 84672
Step 197: 84672 + 432 = 85104
Step 198: 85104 + 432 = 85536
Step 199: 85536 + 432 = 85968
Step 200: 85968 + 432 = 86400
Step 201: 86400 + 432 = 86832
Step 202: 86832 + 432 = 87264
Step 203: 87264 + 432 = 87696
Step 204: 87696 + 432 = 88128
Step 205: 88128 + 432 = 88560
Step 206: 88560 + 432 = 88992
Step 207: 88992 + 432 = 89424
Step 208: 89424 + 432 = 89856
Step 209: 89856 + 432 = 90288
Step 210: 90288 + 432 = 90720
Step 211: 90720 + 432 = 91152
Step 212: 91152 + 432 = 91584
Step 213: 91584 + 432 = 92016
Step 214: 92016 + 432 = 92448
Step 215: 92448 + 432 = 92880
Step 216: 92880 + 432 = 93312
Step 217: 93312 + 432 = 93744
Step 218: 93744 + 432 = 94176
Step 219: 94176 + 432 = 94608
Step 220: 94608 + 432 = 95040
Step 221: 95040 + 432 = 95472
Step 222: 95472 + 432 = 95904
Step 223: 95904 + 432 = 96336
Step 224: 96336 + 432 = 96768
Step 225: 96768 + 432 = 97200
Step 226: 97200 + 432 = 97632
Step 227: 97632 + 432 = 98064
Step 228: 98064 + 432 = 98496
Step 229: 98496 + 432 = 98928
Step 230: 98928 + 432 = 99360
Step 231: 99360 + 432 = 99792
Step 232: 99792 + 432 = 100224
Step 233: 100224 + 432 = 100656
Step 234: 100656 + 432 = 101088
Step 235: 101088 + 432 = 101520
Step 236: 101520 + 432 = 101952
Step 237: 101952 + 432 = 102384
Step 238: 102384 + 432 = 102816
Step 239: 102816 + 432 = 103248
Step 240: 103248 + 432 = 103680
Step 241: 103680 + 432 = 104112
Step 242: 104112 + 432 = 104544
Step 243: 104544 + 432 = 104976
Step 244: 104976 + 432 = 105408
Step 245: 105408 + 432 = 105840
Step 246: 105840 + 432 = 106272
Step 247: 106272 + 432 = 106704
Step 248: 106704 + 432 = 107136
Step 249: 107136 + 432 = 107568
Step 250: 107568 + 432 = 108000
Step 251: 108000 + 432 = 108432
Step 252: 108432 + 432 = 108864
Step 253: 108864 + 432 = 109296
Step 254: 109296 + 432 = 109728
Step 255: 109728 + 432 = 110160
Step 256: 110160 + 432 = 110592
Step 257: 110592 + 432 = 111024
Step 258: 111024 + 432 = 111456
Step 259: 111456 + 432 = 111888
Step 260: 111888 + 432 = 112320
Step 261: 112320 + 432 = 112752
Step 262: 112752 + 432 = 113184
Step 263: 113184 + 432 = 113616
Step 264: 113616 + 432 = 114048
Step 265: 114048 + 432 = 114480
Step 266: 114480 + 432 = 114912
Step 267: 114912 + 432 = 115344
Step 268: 115344 + 432 = 115776
Step 269: 115776 + 432 = 116208
Step 270: 116208 + 432 = 116640
Step 271: 116640 + 432 = 117072
Step 272: 117072 + 432 = 117504
Step 273: 117504 + 432 = 117936
Step 274: 117936 + 432 = 118368
Step 275: 118368 + 432 = 118800
Step 276: 118800 + 432 = 119232
Step 277: 119232 + 432 = 119664
Step 278: 119664 + 432 = 120096
Step 279: 120096 + 432 = 120528
Step 280: 120528 + 432 = 120960
Step 281: 120960 + 432 = 121392
Step 282: 121392 + 432 = 121824
Step 283: 121824 + 432 = 122256
Step 284: 122256 + 432 = 122688
Step 285: 122688 + 432 = 123120
Step 286: 123120 + 432 = 123552
Step 287: 123552 + 432 = 123984
Step 288: 123984 + 432 = 124416
Step 289: 124416 + 432 = 124848
Step 290: 124848 + 432 = 125280
Step 291: 125280 + 432 = 125712
Step 292: 125712 + 432 = 126144
Step 293: 126144 + 432 = 126576
Step 294: 126576 + 432 = 127008
Step 295: 127008 + 432 = 127440
Step 296: 127440 + 432 = 127872
Step 297: 127872 + 432 = 128304
Step 298: 128304 + 432 = 128736
Step 299: 128736 + 432 = 129168
Step 300: 129168 + 432 = 129600
Step 301: 129600 + 432 = 130032
Step 302: 130032 + 432 = 130464
Step 303: 130464 + 432 = 130896
Step 304: 130896 + 432 = 131328
Step 305: 131328 + 432 = 131760
Step 306: 131760 + 432 = 132192
Step 307: 132192 + 432 = 132624
Step 308: 132624 + 432 = 133056
Step 309: 133056 + 432 = 133488
Step 310: 133488 + 432 = 133920
Step 311: 133920 + 432 = 134352
Step 312: 134352 + 432 = 134784
Step 313: 134784 + 432 = 135216
Step 314: 135216 + 432 = 135648
Step 315: 135648 + 432 = 136080
Step 316: 136080 + 432 = 136512
Step 317: 136512 + 432 = 136944
Step 318: 136944 + 432 = 137376
Step 319: 137376 + 432 = 137808
Step 320: 137808 + 432 = 138240
Step 321: 138240 + 432 = 138672
Step 322: 138672 + 432 = 139104
Step 323: 139104 + 432 = 139536
Step 324: 139536 + 432 = 139968
Step 325: 139968 + 432 = 140400
Step 326: 140400 + 432 = 140832
Step 327: 140832 + 432 = 141264
Step 328: 141264 + 432 = 141696
Step 329: 141696 + 432 = 142128
Step 330: 142128 + 432 = 142560
Step 331: 142560 + 432 = 142992
Step 332: 142992 + 432 = 143424
Step 333: 143424 + 432 = 143856
Step 334: 143856 + 432 = 144288
Step 335: 144288 + 432 = 144720
Step 336: 144720 + 432 = 145152

So, 432*336 = 145152