Without delay, let's solve this. We've got 660 and we will be multiplying it by 58, that is, adding 660 to itself 58 times.
Step 1: 0 + 660 = 660
Step 2: 660 + 660 = 1320
Step 3: 1320 + 660 = 1980
Step 4: 1980 + 660 = 2640
Step 5: 2640 + 660 = 3300
Step 6: 3300 + 660 = 3960
Step 7: 3960 + 660 = 4620
Step 8: 4620 + 660 = 5280
Step 9: 5280 + 660 = 5940
Step 10: 5940 + 660 = 6600
Step 11: 6600 + 660 = 7260
Step 12: 7260 + 660 = 7920
Step 13: 7920 + 660 = 8580
Step 14: 8580 + 660 = 9240
Step 15: 9240 + 660 = 9900
Step 16: 9900 + 660 = 10560
Step 17: 10560 + 660 = 11220
Step 18: 11220 + 660 = 11880
Step 19: 11880 + 660 = 12540
Step 20: 12540 + 660 = 13200
Step 21: 13200 + 660 = 13860
Step 22: 13860 + 660 = 14520
Step 23: 14520 + 660 = 15180
Step 24: 15180 + 660 = 15840
Step 25: 15840 + 660 = 16500
Step 26: 16500 + 660 = 17160
Step 27: 17160 + 660 = 17820
Step 28: 17820 + 660 = 18480
Step 29: 18480 + 660 = 19140
Step 30: 19140 + 660 = 19800
Step 31: 19800 + 660 = 20460
Step 32: 20460 + 660 = 21120
Step 33: 21120 + 660 = 21780
Step 34: 21780 + 660 = 22440
Step 35: 22440 + 660 = 23100
Step 36: 23100 + 660 = 23760
Step 37: 23760 + 660 = 24420
Step 38: 24420 + 660 = 25080
Step 39: 25080 + 660 = 25740
Step 40: 25740 + 660 = 26400
Step 41: 26400 + 660 = 27060
Step 42: 27060 + 660 = 27720
Step 43: 27720 + 660 = 28380
Step 44: 28380 + 660 = 29040
Step 45: 29040 + 660 = 29700
Step 46: 29700 + 660 = 30360
Step 47: 30360 + 660 = 31020
Step 48: 31020 + 660 = 31680
Step 49: 31680 + 660 = 32340
Step 50: 32340 + 660 = 33000
Step 51: 33000 + 660 = 33660
Step 52: 33660 + 660 = 34320
Step 53: 34320 + 660 = 34980
Step 54: 34980 + 660 = 35640
Step 55: 35640 + 660 = 36300
Step 56: 36300 + 660 = 36960
Step 57: 36960 + 660 = 37620
Step 58: 37620 + 660 = 38280

So, 660*58 = 38280