Let's roll up our sleeves and solve this. We have 480 and we're going to multiply it by 123, essentially adding 480 to itself 123 times.
Step 1: 0 + 480 = 480
Step 2: 480 + 480 = 960
Step 3: 960 + 480 = 1440
Step 4: 1440 + 480 = 1920
Step 5: 1920 + 480 = 2400
Step 6: 2400 + 480 = 2880
Step 7: 2880 + 480 = 3360
Step 8: 3360 + 480 = 3840
Step 9: 3840 + 480 = 4320
Step 10: 4320 + 480 = 4800
Step 11: 4800 + 480 = 5280
Step 12: 5280 + 480 = 5760
Step 13: 5760 + 480 = 6240
Step 14: 6240 + 480 = 6720
Step 15: 6720 + 480 = 7200
Step 16: 7200 + 480 = 7680
Step 17: 7680 + 480 = 8160
Step 18: 8160 + 480 = 8640
Step 19: 8640 + 480 = 9120
Step 20: 9120 + 480 = 9600
Step 21: 9600 + 480 = 10080
Step 22: 10080 + 480 = 10560
Step 23: 10560 + 480 = 11040
Step 24: 11040 + 480 = 11520
Step 25: 11520 + 480 = 12000
Step 26: 12000 + 480 = 12480
Step 27: 12480 + 480 = 12960
Step 28: 12960 + 480 = 13440
Step 29: 13440 + 480 = 13920
Step 30: 13920 + 480 = 14400
Step 31: 14400 + 480 = 14880
Step 32: 14880 + 480 = 15360
Step 33: 15360 + 480 = 15840
Step 34: 15840 + 480 = 16320
Step 35: 16320 + 480 = 16800
Step 36: 16800 + 480 = 17280
Step 37: 17280 + 480 = 17760
Step 38: 17760 + 480 = 18240
Step 39: 18240 + 480 = 18720
Step 40: 18720 + 480 = 19200
Step 41: 19200 + 480 = 19680
Step 42: 19680 + 480 = 20160
Step 43: 20160 + 480 = 20640
Step 44: 20640 + 480 = 21120
Step 45: 21120 + 480 = 21600
Step 46: 21600 + 480 = 22080
Step 47: 22080 + 480 = 22560
Step 48: 22560 + 480 = 23040
Step 49: 23040 + 480 = 23520
Step 50: 23520 + 480 = 24000
Step 51: 24000 + 480 = 24480
Step 52: 24480 + 480 = 24960
Step 53: 24960 + 480 = 25440
Step 54: 25440 + 480 = 25920
Step 55: 25920 + 480 = 26400
Step 56: 26400 + 480 = 26880
Step 57: 26880 + 480 = 27360
Step 58: 27360 + 480 = 27840
Step 59: 27840 + 480 = 28320
Step 60: 28320 + 480 = 28800
Step 61: 28800 + 480 = 29280
Step 62: 29280 + 480 = 29760
Step 63: 29760 + 480 = 30240
Step 64: 30240 + 480 = 30720
Step 65: 30720 + 480 = 31200
Step 66: 31200 + 480 = 31680
Step 67: 31680 + 480 = 32160
Step 68: 32160 + 480 = 32640
Step 69: 32640 + 480 = 33120
Step 70: 33120 + 480 = 33600
Step 71: 33600 + 480 = 34080
Step 72: 34080 + 480 = 34560
Step 73: 34560 + 480 = 35040
Step 74: 35040 + 480 = 35520
Step 75: 35520 + 480 = 36000
Step 76: 36000 + 480 = 36480
Step 77: 36480 + 480 = 36960
Step 78: 36960 + 480 = 37440
Step 79: 37440 + 480 = 37920
Step 80: 37920 + 480 = 38400
Step 81: 38400 + 480 = 38880
Step 82: 38880 + 480 = 39360
Step 83: 39360 + 480 = 39840
Step 84: 39840 + 480 = 40320
Step 85: 40320 + 480 = 40800
Step 86: 40800 + 480 = 41280
Step 87: 41280 + 480 = 41760
Step 88: 41760 + 480 = 42240
Step 89: 42240 + 480 = 42720
Step 90: 42720 + 480 = 43200
Step 91: 43200 + 480 = 43680
Step 92: 43680 + 480 = 44160
Step 93: 44160 + 480 = 44640
Step 94: 44640 + 480 = 45120
Step 95: 45120 + 480 = 45600
Step 96: 45600 + 480 = 46080
Step 97: 46080 + 480 = 46560
Step 98: 46560 + 480 = 47040
Step 99: 47040 + 480 = 47520
Step 100: 47520 + 480 = 48000
Step 101: 48000 + 480 = 48480
Step 102: 48480 + 480 = 48960
Step 103: 48960 + 480 = 49440
Step 104: 49440 + 480 = 49920
Step 105: 49920 + 480 = 50400
Step 106: 50400 + 480 = 50880
Step 107: 50880 + 480 = 51360
Step 108: 51360 + 480 = 51840
Step 109: 51840 + 480 = 52320
Step 110: 52320 + 480 = 52800
Step 111: 52800 + 480 = 53280
Step 112: 53280 + 480 = 53760
Step 113: 53760 + 480 = 54240
Step 114: 54240 + 480 = 54720
Step 115: 54720 + 480 = 55200
Step 116: 55200 + 480 = 55680
Step 117: 55680 + 480 = 56160
Step 118: 56160 + 480 = 56640
Step 119: 56640 + 480 = 57120
Step 120: 57120 + 480 = 57600
Step 121: 57600 + 480 = 58080
Step 122: 58080 + 480 = 58560
Step 123: 58560 + 480 = 59040

So, 480*123 = 59040