OK, let's crack this. We're given 905 and our task is to multiply it by 148. Essentially, we'll be adding 905 to itself 148 times.
Step 1: 0 + 905 = 905
Step 2: 905 + 905 = 1810
Step 3: 1810 + 905 = 2715
Step 4: 2715 + 905 = 3620
Step 5: 3620 + 905 = 4525
Step 6: 4525 + 905 = 5430
Step 7: 5430 + 905 = 6335
Step 8: 6335 + 905 = 7240
Step 9: 7240 + 905 = 8145
Step 10: 8145 + 905 = 9050
Step 11: 9050 + 905 = 9955
Step 12: 9955 + 905 = 10860
Step 13: 10860 + 905 = 11765
Step 14: 11765 + 905 = 12670
Step 15: 12670 + 905 = 13575
Step 16: 13575 + 905 = 14480
Step 17: 14480 + 905 = 15385
Step 18: 15385 + 905 = 16290
Step 19: 16290 + 905 = 17195
Step 20: 17195 + 905 = 18100
Step 21: 18100 + 905 = 19005
Step 22: 19005 + 905 = 19910
Step 23: 19910 + 905 = 20815
Step 24: 20815 + 905 = 21720
Step 25: 21720 + 905 = 22625
Step 26: 22625 + 905 = 23530
Step 27: 23530 + 905 = 24435
Step 28: 24435 + 905 = 25340
Step 29: 25340 + 905 = 26245
Step 30: 26245 + 905 = 27150
Step 31: 27150 + 905 = 28055
Step 32: 28055 + 905 = 28960
Step 33: 28960 + 905 = 29865
Step 34: 29865 + 905 = 30770
Step 35: 30770 + 905 = 31675
Step 36: 31675 + 905 = 32580
Step 37: 32580 + 905 = 33485
Step 38: 33485 + 905 = 34390
Step 39: 34390 + 905 = 35295
Step 40: 35295 + 905 = 36200
Step 41: 36200 + 905 = 37105
Step 42: 37105 + 905 = 38010
Step 43: 38010 + 905 = 38915
Step 44: 38915 + 905 = 39820
Step 45: 39820 + 905 = 40725
Step 46: 40725 + 905 = 41630
Step 47: 41630 + 905 = 42535
Step 48: 42535 + 905 = 43440
Step 49: 43440 + 905 = 44345
Step 50: 44345 + 905 = 45250
Step 51: 45250 + 905 = 46155
Step 52: 46155 + 905 = 47060
Step 53: 47060 + 905 = 47965
Step 54: 47965 + 905 = 48870
Step 55: 48870 + 905 = 49775
Step 56: 49775 + 905 = 50680
Step 57: 50680 + 905 = 51585
Step 58: 51585 + 905 = 52490
Step 59: 52490 + 905 = 53395
Step 60: 53395 + 905 = 54300
Step 61: 54300 + 905 = 55205
Step 62: 55205 + 905 = 56110
Step 63: 56110 + 905 = 57015
Step 64: 57015 + 905 = 57920
Step 65: 57920 + 905 = 58825
Step 66: 58825 + 905 = 59730
Step 67: 59730 + 905 = 60635
Step 68: 60635 + 905 = 61540
Step 69: 61540 + 905 = 62445
Step 70: 62445 + 905 = 63350
Step 71: 63350 + 905 = 64255
Step 72: 64255 + 905 = 65160
Step 73: 65160 + 905 = 66065
Step 74: 66065 + 905 = 66970
Step 75: 66970 + 905 = 67875
Step 76: 67875 + 905 = 68780
Step 77: 68780 + 905 = 69685
Step 78: 69685 + 905 = 70590
Step 79: 70590 + 905 = 71495
Step 80: 71495 + 905 = 72400
Step 81: 72400 + 905 = 73305
Step 82: 73305 + 905 = 74210
Step 83: 74210 + 905 = 75115
Step 84: 75115 + 905 = 76020
Step 85: 76020 + 905 = 76925
Step 86: 76925 + 905 = 77830
Step 87: 77830 + 905 = 78735
Step 88: 78735 + 905 = 79640
Step 89: 79640 + 905 = 80545
Step 90: 80545 + 905 = 81450
Step 91: 81450 + 905 = 82355
Step 92: 82355 + 905 = 83260
Step 93: 83260 + 905 = 84165
Step 94: 84165 + 905 = 85070
Step 95: 85070 + 905 = 85975
Step 96: 85975 + 905 = 86880
Step 97: 86880 + 905 = 87785
Step 98: 87785 + 905 = 88690
Step 99: 88690 + 905 = 89595
Step 100: 89595 + 905 = 90500
Step 101: 90500 + 905 = 91405
Step 102: 91405 + 905 = 92310
Step 103: 92310 + 905 = 93215
Step 104: 93215 + 905 = 94120
Step 105: 94120 + 905 = 95025
Step 106: 95025 + 905 = 95930
Step 107: 95930 + 905 = 96835
Step 108: 96835 + 905 = 97740
Step 109: 97740 + 905 = 98645
Step 110: 98645 + 905 = 99550
Step 111: 99550 + 905 = 100455
Step 112: 100455 + 905 = 101360
Step 113: 101360 + 905 = 102265
Step 114: 102265 + 905 = 103170
Step 115: 103170 + 905 = 104075
Step 116: 104075 + 905 = 104980
Step 117: 104980 + 905 = 105885
Step 118: 105885 + 905 = 106790
Step 119: 106790 + 905 = 107695
Step 120: 107695 + 905 = 108600
Step 121: 108600 + 905 = 109505
Step 122: 109505 + 905 = 110410
Step 123: 110410 + 905 = 111315
Step 124: 111315 + 905 = 112220
Step 125: 112220 + 905 = 113125
Step 126: 113125 + 905 = 114030
Step 127: 114030 + 905 = 114935
Step 128: 114935 + 905 = 115840
Step 129: 115840 + 905 = 116745
Step 130: 116745 + 905 = 117650
Step 131: 117650 + 905 = 118555
Step 132: 118555 + 905 = 119460
Step 133: 119460 + 905 = 120365
Step 134: 120365 + 905 = 121270
Step 135: 121270 + 905 = 122175
Step 136: 122175 + 905 = 123080
Step 137: 123080 + 905 = 123985
Step 138: 123985 + 905 = 124890
Step 139: 124890 + 905 = 125795
Step 140: 125795 + 905 = 126700
Step 141: 126700 + 905 = 127605
Step 142: 127605 + 905 = 128510
Step 143: 128510 + 905 = 129415
Step 144: 129415 + 905 = 130320
Step 145: 130320 + 905 = 131225
Step 146: 131225 + 905 = 132130
Step 147: 132130 + 905 = 133035
Step 148: 133035 + 905 = 133940

So, 905*148 = 133940