Alright, let's solve this math problem step by step. First, we have the number 630. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 123. So, we're going to take the number 630 and add it to itself 123 times.
Step 1: 0 + 630 = 630
Step 2: 630 + 630 = 1260
Step 3: 1260 + 630 = 1890
Step 4: 1890 + 630 = 2520
Step 5: 2520 + 630 = 3150
Step 6: 3150 + 630 = 3780
Step 7: 3780 + 630 = 4410
Step 8: 4410 + 630 = 5040
Step 9: 5040 + 630 = 5670
Step 10: 5670 + 630 = 6300
Step 11: 6300 + 630 = 6930
Step 12: 6930 + 630 = 7560
Step 13: 7560 + 630 = 8190
Step 14: 8190 + 630 = 8820
Step 15: 8820 + 630 = 9450
Step 16: 9450 + 630 = 10080
Step 17: 10080 + 630 = 10710
Step 18: 10710 + 630 = 11340
Step 19: 11340 + 630 = 11970
Step 20: 11970 + 630 = 12600
Step 21: 12600 + 630 = 13230
Step 22: 13230 + 630 = 13860
Step 23: 13860 + 630 = 14490
Step 24: 14490 + 630 = 15120
Step 25: 15120 + 630 = 15750
Step 26: 15750 + 630 = 16380
Step 27: 16380 + 630 = 17010
Step 28: 17010 + 630 = 17640
Step 29: 17640 + 630 = 18270
Step 30: 18270 + 630 = 18900
Step 31: 18900 + 630 = 19530
Step 32: 19530 + 630 = 20160
Step 33: 20160 + 630 = 20790
Step 34: 20790 + 630 = 21420
Step 35: 21420 + 630 = 22050
Step 36: 22050 + 630 = 22680
Step 37: 22680 + 630 = 23310
Step 38: 23310 + 630 = 23940
Step 39: 23940 + 630 = 24570
Step 40: 24570 + 630 = 25200
Step 41: 25200 + 630 = 25830
Step 42: 25830 + 630 = 26460
Step 43: 26460 + 630 = 27090
Step 44: 27090 + 630 = 27720
Step 45: 27720 + 630 = 28350
Step 46: 28350 + 630 = 28980
Step 47: 28980 + 630 = 29610
Step 48: 29610 + 630 = 30240
Step 49: 30240 + 630 = 30870
Step 50: 30870 + 630 = 31500
Step 51: 31500 + 630 = 32130
Step 52: 32130 + 630 = 32760
Step 53: 32760 + 630 = 33390
Step 54: 33390 + 630 = 34020
Step 55: 34020 + 630 = 34650
Step 56: 34650 + 630 = 35280
Step 57: 35280 + 630 = 35910
Step 58: 35910 + 630 = 36540
Step 59: 36540 + 630 = 37170
Step 60: 37170 + 630 = 37800
Step 61: 37800 + 630 = 38430
Step 62: 38430 + 630 = 39060
Step 63: 39060 + 630 = 39690
Step 64: 39690 + 630 = 40320
Step 65: 40320 + 630 = 40950
Step 66: 40950 + 630 = 41580
Step 67: 41580 + 630 = 42210
Step 68: 42210 + 630 = 42840
Step 69: 42840 + 630 = 43470
Step 70: 43470 + 630 = 44100
Step 71: 44100 + 630 = 44730
Step 72: 44730 + 630 = 45360
Step 73: 45360 + 630 = 45990
Step 74: 45990 + 630 = 46620
Step 75: 46620 + 630 = 47250
Step 76: 47250 + 630 = 47880
Step 77: 47880 + 630 = 48510
Step 78: 48510 + 630 = 49140
Step 79: 49140 + 630 = 49770
Step 80: 49770 + 630 = 50400
Step 81: 50400 + 630 = 51030
Step 82: 51030 + 630 = 51660
Step 83: 51660 + 630 = 52290
Step 84: 52290 + 630 = 52920
Step 85: 52920 + 630 = 53550
Step 86: 53550 + 630 = 54180
Step 87: 54180 + 630 = 54810
Step 88: 54810 + 630 = 55440
Step 89: 55440 + 630 = 56070
Step 90: 56070 + 630 = 56700
Step 91: 56700 + 630 = 57330
Step 92: 57330 + 630 = 57960
Step 93: 57960 + 630 = 58590
Step 94: 58590 + 630 = 59220
Step 95: 59220 + 630 = 59850
Step 96: 59850 + 630 = 60480
Step 97: 60480 + 630 = 61110
Step 98: 61110 + 630 = 61740
Step 99: 61740 + 630 = 62370
Step 100: 62370 + 630 = 63000
Step 101: 63000 + 630 = 63630
Step 102: 63630 + 630 = 64260
Step 103: 64260 + 630 = 64890
Step 104: 64890 + 630 = 65520
Step 105: 65520 + 630 = 66150
Step 106: 66150 + 630 = 66780
Step 107: 66780 + 630 = 67410
Step 108: 67410 + 630 = 68040
Step 109: 68040 + 630 = 68670
Step 110: 68670 + 630 = 69300
Step 111: 69300 + 630 = 69930
Step 112: 69930 + 630 = 70560
Step 113: 70560 + 630 = 71190
Step 114: 71190 + 630 = 71820
Step 115: 71820 + 630 = 72450
Step 116: 72450 + 630 = 73080
Step 117: 73080 + 630 = 73710
Step 118: 73710 + 630 = 74340
Step 119: 74340 + 630 = 74970
Step 120: 74970 + 630 = 75600
Step 121: 75600 + 630 = 76230
Step 122: 76230 + 630 = 76860
Step 123: 76860 + 630 = 77490

So, 630*123 = 77490