Let's roll up our sleeves and solve this. We have 330 and we're going to multiply it by 161, essentially adding 330 to itself 161 times.
Step 1: 0 + 330 = 330
Step 2: 330 + 330 = 660
Step 3: 660 + 330 = 990
Step 4: 990 + 330 = 1320
Step 5: 1320 + 330 = 1650
Step 6: 1650 + 330 = 1980
Step 7: 1980 + 330 = 2310
Step 8: 2310 + 330 = 2640
Step 9: 2640 + 330 = 2970
Step 10: 2970 + 330 = 3300
Step 11: 3300 + 330 = 3630
Step 12: 3630 + 330 = 3960
Step 13: 3960 + 330 = 4290
Step 14: 4290 + 330 = 4620
Step 15: 4620 + 330 = 4950
Step 16: 4950 + 330 = 5280
Step 17: 5280 + 330 = 5610
Step 18: 5610 + 330 = 5940
Step 19: 5940 + 330 = 6270
Step 20: 6270 + 330 = 6600
Step 21: 6600 + 330 = 6930
Step 22: 6930 + 330 = 7260
Step 23: 7260 + 330 = 7590
Step 24: 7590 + 330 = 7920
Step 25: 7920 + 330 = 8250
Step 26: 8250 + 330 = 8580
Step 27: 8580 + 330 = 8910
Step 28: 8910 + 330 = 9240
Step 29: 9240 + 330 = 9570
Step 30: 9570 + 330 = 9900
Step 31: 9900 + 330 = 10230
Step 32: 10230 + 330 = 10560
Step 33: 10560 + 330 = 10890
Step 34: 10890 + 330 = 11220
Step 35: 11220 + 330 = 11550
Step 36: 11550 + 330 = 11880
Step 37: 11880 + 330 = 12210
Step 38: 12210 + 330 = 12540
Step 39: 12540 + 330 = 12870
Step 40: 12870 + 330 = 13200
Step 41: 13200 + 330 = 13530
Step 42: 13530 + 330 = 13860
Step 43: 13860 + 330 = 14190
Step 44: 14190 + 330 = 14520
Step 45: 14520 + 330 = 14850
Step 46: 14850 + 330 = 15180
Step 47: 15180 + 330 = 15510
Step 48: 15510 + 330 = 15840
Step 49: 15840 + 330 = 16170
Step 50: 16170 + 330 = 16500
Step 51: 16500 + 330 = 16830
Step 52: 16830 + 330 = 17160
Step 53: 17160 + 330 = 17490
Step 54: 17490 + 330 = 17820
Step 55: 17820 + 330 = 18150
Step 56: 18150 + 330 = 18480
Step 57: 18480 + 330 = 18810
Step 58: 18810 + 330 = 19140
Step 59: 19140 + 330 = 19470
Step 60: 19470 + 330 = 19800
Step 61: 19800 + 330 = 20130
Step 62: 20130 + 330 = 20460
Step 63: 20460 + 330 = 20790
Step 64: 20790 + 330 = 21120
Step 65: 21120 + 330 = 21450
Step 66: 21450 + 330 = 21780
Step 67: 21780 + 330 = 22110
Step 68: 22110 + 330 = 22440
Step 69: 22440 + 330 = 22770
Step 70: 22770 + 330 = 23100
Step 71: 23100 + 330 = 23430
Step 72: 23430 + 330 = 23760
Step 73: 23760 + 330 = 24090
Step 74: 24090 + 330 = 24420
Step 75: 24420 + 330 = 24750
Step 76: 24750 + 330 = 25080
Step 77: 25080 + 330 = 25410
Step 78: 25410 + 330 = 25740
Step 79: 25740 + 330 = 26070
Step 80: 26070 + 330 = 26400
Step 81: 26400 + 330 = 26730
Step 82: 26730 + 330 = 27060
Step 83: 27060 + 330 = 27390
Step 84: 27390 + 330 = 27720
Step 85: 27720 + 330 = 28050
Step 86: 28050 + 330 = 28380
Step 87: 28380 + 330 = 28710
Step 88: 28710 + 330 = 29040
Step 89: 29040 + 330 = 29370
Step 90: 29370 + 330 = 29700
Step 91: 29700 + 330 = 30030
Step 92: 30030 + 330 = 30360
Step 93: 30360 + 330 = 30690
Step 94: 30690 + 330 = 31020
Step 95: 31020 + 330 = 31350
Step 96: 31350 + 330 = 31680
Step 97: 31680 + 330 = 32010
Step 98: 32010 + 330 = 32340
Step 99: 32340 + 330 = 32670
Step 100: 32670 + 330 = 33000
Step 101: 33000 + 330 = 33330
Step 102: 33330 + 330 = 33660
Step 103: 33660 + 330 = 33990
Step 104: 33990 + 330 = 34320
Step 105: 34320 + 330 = 34650
Step 106: 34650 + 330 = 34980
Step 107: 34980 + 330 = 35310
Step 108: 35310 + 330 = 35640
Step 109: 35640 + 330 = 35970
Step 110: 35970 + 330 = 36300
Step 111: 36300 + 330 = 36630
Step 112: 36630 + 330 = 36960
Step 113: 36960 + 330 = 37290
Step 114: 37290 + 330 = 37620
Step 115: 37620 + 330 = 37950
Step 116: 37950 + 330 = 38280
Step 117: 38280 + 330 = 38610
Step 118: 38610 + 330 = 38940
Step 119: 38940 + 330 = 39270
Step 120: 39270 + 330 = 39600
Step 121: 39600 + 330 = 39930
Step 122: 39930 + 330 = 40260
Step 123: 40260 + 330 = 40590
Step 124: 40590 + 330 = 40920
Step 125: 40920 + 330 = 41250
Step 126: 41250 + 330 = 41580
Step 127: 41580 + 330 = 41910
Step 128: 41910 + 330 = 42240
Step 129: 42240 + 330 = 42570
Step 130: 42570 + 330 = 42900
Step 131: 42900 + 330 = 43230
Step 132: 43230 + 330 = 43560
Step 133: 43560 + 330 = 43890
Step 134: 43890 + 330 = 44220
Step 135: 44220 + 330 = 44550
Step 136: 44550 + 330 = 44880
Step 137: 44880 + 330 = 45210
Step 138: 45210 + 330 = 45540
Step 139: 45540 + 330 = 45870
Step 140: 45870 + 330 = 46200
Step 141: 46200 + 330 = 46530
Step 142: 46530 + 330 = 46860
Step 143: 46860 + 330 = 47190
Step 144: 47190 + 330 = 47520
Step 145: 47520 + 330 = 47850
Step 146: 47850 + 330 = 48180
Step 147: 48180 + 330 = 48510
Step 148: 48510 + 330 = 48840
Step 149: 48840 + 330 = 49170
Step 150: 49170 + 330 = 49500
Step 151: 49500 + 330 = 49830
Step 152: 49830 + 330 = 50160
Step 153: 50160 + 330 = 50490
Step 154: 50490 + 330 = 50820
Step 155: 50820 + 330 = 51150
Step 156: 51150 + 330 = 51480
Step 157: 51480 + 330 = 51810
Step 158: 51810 + 330 = 52140
Step 159: 52140 + 330 = 52470
Step 160: 52470 + 330 = 52800
Step 161: 52800 + 330 = 53130

So, 330*161 = 53130