Sure thing, let's get straight to it. We start with 148 and we're going to multiply it by 398, which means adding 148 to itself 398 times.
Step 1: 0 + 148 = 148
Step 2: 148 + 148 = 296
Step 3: 296 + 148 = 444
Step 4: 444 + 148 = 592
Step 5: 592 + 148 = 740
Step 6: 740 + 148 = 888
Step 7: 888 + 148 = 1036
Step 8: 1036 + 148 = 1184
Step 9: 1184 + 148 = 1332
Step 10: 1332 + 148 = 1480
Step 11: 1480 + 148 = 1628
Step 12: 1628 + 148 = 1776
Step 13: 1776 + 148 = 1924
Step 14: 1924 + 148 = 2072
Step 15: 2072 + 148 = 2220
Step 16: 2220 + 148 = 2368
Step 17: 2368 + 148 = 2516
Step 18: 2516 + 148 = 2664
Step 19: 2664 + 148 = 2812
Step 20: 2812 + 148 = 2960
Step 21: 2960 + 148 = 3108
Step 22: 3108 + 148 = 3256
Step 23: 3256 + 148 = 3404
Step 24: 3404 + 148 = 3552
Step 25: 3552 + 148 = 3700
Step 26: 3700 + 148 = 3848
Step 27: 3848 + 148 = 3996
Step 28: 3996 + 148 = 4144
Step 29: 4144 + 148 = 4292
Step 30: 4292 + 148 = 4440
Step 31: 4440 + 148 = 4588
Step 32: 4588 + 148 = 4736
Step 33: 4736 + 148 = 4884
Step 34: 4884 + 148 = 5032
Step 35: 5032 + 148 = 5180
Step 36: 5180 + 148 = 5328
Step 37: 5328 + 148 = 5476
Step 38: 5476 + 148 = 5624
Step 39: 5624 + 148 = 5772
Step 40: 5772 + 148 = 5920
Step 41: 5920 + 148 = 6068
Step 42: 6068 + 148 = 6216
Step 43: 6216 + 148 = 6364
Step 44: 6364 + 148 = 6512
Step 45: 6512 + 148 = 6660
Step 46: 6660 + 148 = 6808
Step 47: 6808 + 148 = 6956
Step 48: 6956 + 148 = 7104
Step 49: 7104 + 148 = 7252
Step 50: 7252 + 148 = 7400
Step 51: 7400 + 148 = 7548
Step 52: 7548 + 148 = 7696
Step 53: 7696 + 148 = 7844
Step 54: 7844 + 148 = 7992
Step 55: 7992 + 148 = 8140
Step 56: 8140 + 148 = 8288
Step 57: 8288 + 148 = 8436
Step 58: 8436 + 148 = 8584
Step 59: 8584 + 148 = 8732
Step 60: 8732 + 148 = 8880
Step 61: 8880 + 148 = 9028
Step 62: 9028 + 148 = 9176
Step 63: 9176 + 148 = 9324
Step 64: 9324 + 148 = 9472
Step 65: 9472 + 148 = 9620
Step 66: 9620 + 148 = 9768
Step 67: 9768 + 148 = 9916
Step 68: 9916 + 148 = 10064
Step 69: 10064 + 148 = 10212
Step 70: 10212 + 148 = 10360
Step 71: 10360 + 148 = 10508
Step 72: 10508 + 148 = 10656
Step 73: 10656 + 148 = 10804
Step 74: 10804 + 148 = 10952
Step 75: 10952 + 148 = 11100
Step 76: 11100 + 148 = 11248
Step 77: 11248 + 148 = 11396
Step 78: 11396 + 148 = 11544
Step 79: 11544 + 148 = 11692
Step 80: 11692 + 148 = 11840
Step 81: 11840 + 148 = 11988
Step 82: 11988 + 148 = 12136
Step 83: 12136 + 148 = 12284
Step 84: 12284 + 148 = 12432
Step 85: 12432 + 148 = 12580
Step 86: 12580 + 148 = 12728
Step 87: 12728 + 148 = 12876
Step 88: 12876 + 148 = 13024
Step 89: 13024 + 148 = 13172
Step 90: 13172 + 148 = 13320
Step 91: 13320 + 148 = 13468
Step 92: 13468 + 148 = 13616
Step 93: 13616 + 148 = 13764
Step 94: 13764 + 148 = 13912
Step 95: 13912 + 148 = 14060
Step 96: 14060 + 148 = 14208
Step 97: 14208 + 148 = 14356
Step 98: 14356 + 148 = 14504
Step 99: 14504 + 148 = 14652
Step 100: 14652 + 148 = 14800
Step 101: 14800 + 148 = 14948
Step 102: 14948 + 148 = 15096
Step 103: 15096 + 148 = 15244
Step 104: 15244 + 148 = 15392
Step 105: 15392 + 148 = 15540
Step 106: 15540 + 148 = 15688
Step 107: 15688 + 148 = 15836
Step 108: 15836 + 148 = 15984
Step 109: 15984 + 148 = 16132
Step 110: 16132 + 148 = 16280
Step 111: 16280 + 148 = 16428
Step 112: 16428 + 148 = 16576
Step 113: 16576 + 148 = 16724
Step 114: 16724 + 148 = 16872
Step 115: 16872 + 148 = 17020
Step 116: 17020 + 148 = 17168
Step 117: 17168 + 148 = 17316
Step 118: 17316 + 148 = 17464
Step 119: 17464 + 148 = 17612
Step 120: 17612 + 148 = 17760
Step 121: 17760 + 148 = 17908
Step 122: 17908 + 148 = 18056
Step 123: 18056 + 148 = 18204
Step 124: 18204 + 148 = 18352
Step 125: 18352 + 148 = 18500
Step 126: 18500 + 148 = 18648
Step 127: 18648 + 148 = 18796
Step 128: 18796 + 148 = 18944
Step 129: 18944 + 148 = 19092
Step 130: 19092 + 148 = 19240
Step 131: 19240 + 148 = 19388
Step 132: 19388 + 148 = 19536
Step 133: 19536 + 148 = 19684
Step 134: 19684 + 148 = 19832
Step 135: 19832 + 148 = 19980
Step 136: 19980 + 148 = 20128
Step 137: 20128 + 148 = 20276
Step 138: 20276 + 148 = 20424
Step 139: 20424 + 148 = 20572
Step 140: 20572 + 148 = 20720
Step 141: 20720 + 148 = 20868
Step 142: 20868 + 148 = 21016
Step 143: 21016 + 148 = 21164
Step 144: 21164 + 148 = 21312
Step 145: 21312 + 148 = 21460
Step 146: 21460 + 148 = 21608
Step 147: 21608 + 148 = 21756
Step 148: 21756 + 148 = 21904
Step 149: 21904 + 148 = 22052
Step 150: 22052 + 148 = 22200
Step 151: 22200 + 148 = 22348
Step 152: 22348 + 148 = 22496
Step 153: 22496 + 148 = 22644
Step 154: 22644 + 148 = 22792
Step 155: 22792 + 148 = 22940
Step 156: 22940 + 148 = 23088
Step 157: 23088 + 148 = 23236
Step 158: 23236 + 148 = 23384
Step 159: 23384 + 148 = 23532
Step 160: 23532 + 148 = 23680
Step 161: 23680 + 148 = 23828
Step 162: 23828 + 148 = 23976
Step 163: 23976 + 148 = 24124
Step 164: 24124 + 148 = 24272
Step 165: 24272 + 148 = 24420
Step 166: 24420 + 148 = 24568
Step 167: 24568 + 148 = 24716
Step 168: 24716 + 148 = 24864
Step 169: 24864 + 148 = 25012
Step 170: 25012 + 148 = 25160
Step 171: 25160 + 148 = 25308
Step 172: 25308 + 148 = 25456
Step 173: 25456 + 148 = 25604
Step 174: 25604 + 148 = 25752
Step 175: 25752 + 148 = 25900
Step 176: 25900 + 148 = 26048
Step 177: 26048 + 148 = 26196
Step 178: 26196 + 148 = 26344
Step 179: 26344 + 148 = 26492
Step 180: 26492 + 148 = 26640
Step 181: 26640 + 148 = 26788
Step 182: 26788 + 148 = 26936
Step 183: 26936 + 148 = 27084
Step 184: 27084 + 148 = 27232
Step 185: 27232 + 148 = 27380
Step 186: 27380 + 148 = 27528
Step 187: 27528 + 148 = 27676
Step 188: 27676 + 148 = 27824
Step 189: 27824 + 148 = 27972
Step 190: 27972 + 148 = 28120
Step 191: 28120 + 148 = 28268
Step 192: 28268 + 148 = 28416
Step 193: 28416 + 148 = 28564
Step 194: 28564 + 148 = 28712
Step 195: 28712 + 148 = 28860
Step 196: 28860 + 148 = 29008
Step 197: 29008 + 148 = 29156
Step 198: 29156 + 148 = 29304
Step 199: 29304 + 148 = 29452
Step 200: 29452 + 148 = 29600
Step 201: 29600 + 148 = 29748
Step 202: 29748 + 148 = 29896
Step 203: 29896 + 148 = 30044
Step 204: 30044 + 148 = 30192
Step 205: 30192 + 148 = 30340
Step 206: 30340 + 148 = 30488
Step 207: 30488 + 148 = 30636
Step 208: 30636 + 148 = 30784
Step 209: 30784 + 148 = 30932
Step 210: 30932 + 148 = 31080
Step 211: 31080 + 148 = 31228
Step 212: 31228 + 148 = 31376
Step 213: 31376 + 148 = 31524
Step 214: 31524 + 148 = 31672
Step 215: 31672 + 148 = 31820
Step 216: 31820 + 148 = 31968
Step 217: 31968 + 148 = 32116
Step 218: 32116 + 148 = 32264
Step 219: 32264 + 148 = 32412
Step 220: 32412 + 148 = 32560
Step 221: 32560 + 148 = 32708
Step 222: 32708 + 148 = 32856
Step 223: 32856 + 148 = 33004
Step 224: 33004 + 148 = 33152
Step 225: 33152 + 148 = 33300
Step 226: 33300 + 148 = 33448
Step 227: 33448 + 148 = 33596
Step 228: 33596 + 148 = 33744
Step 229: 33744 + 148 = 33892
Step 230: 33892 + 148 = 34040
Step 231: 34040 + 148 = 34188
Step 232: 34188 + 148 = 34336
Step 233: 34336 + 148 = 34484
Step 234: 34484 + 148 = 34632
Step 235: 34632 + 148 = 34780
Step 236: 34780 + 148 = 34928
Step 237: 34928 + 148 = 35076
Step 238: 35076 + 148 = 35224
Step 239: 35224 + 148 = 35372
Step 240: 35372 + 148 = 35520
Step 241: 35520 + 148 = 35668
Step 242: 35668 + 148 = 35816
Step 243: 35816 + 148 = 35964
Step 244: 35964 + 148 = 36112
Step 245: 36112 + 148 = 36260
Step 246: 36260 + 148 = 36408
Step 247: 36408 + 148 = 36556
Step 248: 36556 + 148 = 36704
Step 249: 36704 + 148 = 36852
Step 250: 36852 + 148 = 37000
Step 251: 37000 + 148 = 37148
Step 252: 37148 + 148 = 37296
Step 253: 37296 + 148 = 37444
Step 254: 37444 + 148 = 37592
Step 255: 37592 + 148 = 37740
Step 256: 37740 + 148 = 37888
Step 257: 37888 + 148 = 38036
Step 258: 38036 + 148 = 38184
Step 259: 38184 + 148 = 38332
Step 260: 38332 + 148 = 38480
Step 261: 38480 + 148 = 38628
Step 262: 38628 + 148 = 38776
Step 263: 38776 + 148 = 38924
Step 264: 38924 + 148 = 39072
Step 265: 39072 + 148 = 39220
Step 266: 39220 + 148 = 39368
Step 267: 39368 + 148 = 39516
Step 268: 39516 + 148 = 39664
Step 269: 39664 + 148 = 39812
Step 270: 39812 + 148 = 39960
Step 271: 39960 + 148 = 40108
Step 272: 40108 + 148 = 40256
Step 273: 40256 + 148 = 40404
Step 274: 40404 + 148 = 40552
Step 275: 40552 + 148 = 40700
Step 276: 40700 + 148 = 40848
Step 277: 40848 + 148 = 40996
Step 278: 40996 + 148 = 41144
Step 279: 41144 + 148 = 41292
Step 280: 41292 + 148 = 41440
Step 281: 41440 + 148 = 41588
Step 282: 41588 + 148 = 41736
Step 283: 41736 + 148 = 41884
Step 284: 41884 + 148 = 42032
Step 285: 42032 + 148 = 42180
Step 286: 42180 + 148 = 42328
Step 287: 42328 + 148 = 42476
Step 288: 42476 + 148 = 42624
Step 289: 42624 + 148 = 42772
Step 290: 42772 + 148 = 42920
Step 291: 42920 + 148 = 43068
Step 292: 43068 + 148 = 43216
Step 293: 43216 + 148 = 43364
Step 294: 43364 + 148 = 43512
Step 295: 43512 + 148 = 43660
Step 296: 43660 + 148 = 43808
Step 297: 43808 + 148 = 43956
Step 298: 43956 + 148 = 44104
Step 299: 44104 + 148 = 44252
Step 300: 44252 + 148 = 44400
Step 301: 44400 + 148 = 44548
Step 302: 44548 + 148 = 44696
Step 303: 44696 + 148 = 44844
Step 304: 44844 + 148 = 44992
Step 305: 44992 + 148 = 45140
Step 306: 45140 + 148 = 45288
Step 307: 45288 + 148 = 45436
Step 308: 45436 + 148 = 45584
Step 309: 45584 + 148 = 45732
Step 310: 45732 + 148 = 45880
Step 311: 45880 + 148 = 46028
Step 312: 46028 + 148 = 46176
Step 313: 46176 + 148 = 46324
Step 314: 46324 + 148 = 46472
Step 315: 46472 + 148 = 46620
Step 316: 46620 + 148 = 46768
Step 317: 46768 + 148 = 46916
Step 318: 46916 + 148 = 47064
Step 319: 47064 + 148 = 47212
Step 320: 47212 + 148 = 47360
Step 321: 47360 + 148 = 47508
Step 322: 47508 + 148 = 47656
Step 323: 47656 + 148 = 47804
Step 324: 47804 + 148 = 47952
Step 325: 47952 + 148 = 48100
Step 326: 48100 + 148 = 48248
Step 327: 48248 + 148 = 48396
Step 328: 48396 + 148 = 48544
Step 329: 48544 + 148 = 48692
Step 330: 48692 + 148 = 48840
Step 331: 48840 + 148 = 48988
Step 332: 48988 + 148 = 49136
Step 333: 49136 + 148 = 49284
Step 334: 49284 + 148 = 49432
Step 335: 49432 + 148 = 49580
Step 336: 49580 + 148 = 49728
Step 337: 49728 + 148 = 49876
Step 338: 49876 + 148 = 50024
Step 339: 50024 + 148 = 50172
Step 340: 50172 + 148 = 50320
Step 341: 50320 + 148 = 50468
Step 342: 50468 + 148 = 50616
Step 343: 50616 + 148 = 50764
Step 344: 50764 + 148 = 50912
Step 345: 50912 + 148 = 51060
Step 346: 51060 + 148 = 51208
Step 347: 51208 + 148 = 51356
Step 348: 51356 + 148 = 51504
Step 349: 51504 + 148 = 51652
Step 350: 51652 + 148 = 51800
Step 351: 51800 + 148 = 51948
Step 352: 51948 + 148 = 52096
Step 353: 52096 + 148 = 52244
Step 354: 52244 + 148 = 52392
Step 355: 52392 + 148 = 52540
Step 356: 52540 + 148 = 52688
Step 357: 52688 + 148 = 52836
Step 358: 52836 + 148 = 52984
Step 359: 52984 + 148 = 53132
Step 360: 53132 + 148 = 53280
Step 361: 53280 + 148 = 53428
Step 362: 53428 + 148 = 53576
Step 363: 53576 + 148 = 53724
Step 364: 53724 + 148 = 53872
Step 365: 53872 + 148 = 54020
Step 366: 54020 + 148 = 54168
Step 367: 54168 + 148 = 54316
Step 368: 54316 + 148 = 54464
Step 369: 54464 + 148 = 54612
Step 370: 54612 + 148 = 54760
Step 371: 54760 + 148 = 54908
Step 372: 54908 + 148 = 55056
Step 373: 55056 + 148 = 55204
Step 374: 55204 + 148 = 55352
Step 375: 55352 + 148 = 55500
Step 376: 55500 + 148 = 55648
Step 377: 55648 + 148 = 55796
Step 378: 55796 + 148 = 55944
Step 379: 55944 + 148 = 56092
Step 380: 56092 + 148 = 56240
Step 381: 56240 + 148 = 56388
Step 382: 56388 + 148 = 56536
Step 383: 56536 + 148 = 56684
Step 384: 56684 + 148 = 56832
Step 385: 56832 + 148 = 56980
Step 386: 56980 + 148 = 57128
Step 387: 57128 + 148 = 57276
Step 388: 57276 + 148 = 57424
Step 389: 57424 + 148 = 57572
Step 390: 57572 + 148 = 57720
Step 391: 57720 + 148 = 57868
Step 392: 57868 + 148 = 58016
Step 393: 58016 + 148 = 58164
Step 394: 58164 + 148 = 58312
Step 395: 58312 + 148 = 58460
Step 396: 58460 + 148 = 58608
Step 397: 58608 + 148 = 58756
Step 398: 58756 + 148 = 58904

So, 148*398 = 58904