Let's get this math done. We have 410 and we're going to multiply it by 71. This is the same as taking 410 and adding it to itself 71 times.
Step 1: 0 + 410 = 410
Step 2: 410 + 410 = 820
Step 3: 820 + 410 = 1230
Step 4: 1230 + 410 = 1640
Step 5: 1640 + 410 = 2050
Step 6: 2050 + 410 = 2460
Step 7: 2460 + 410 = 2870
Step 8: 2870 + 410 = 3280
Step 9: 3280 + 410 = 3690
Step 10: 3690 + 410 = 4100
Step 11: 4100 + 410 = 4510
Step 12: 4510 + 410 = 4920
Step 13: 4920 + 410 = 5330
Step 14: 5330 + 410 = 5740
Step 15: 5740 + 410 = 6150
Step 16: 6150 + 410 = 6560
Step 17: 6560 + 410 = 6970
Step 18: 6970 + 410 = 7380
Step 19: 7380 + 410 = 7790
Step 20: 7790 + 410 = 8200
Step 21: 8200 + 410 = 8610
Step 22: 8610 + 410 = 9020
Step 23: 9020 + 410 = 9430
Step 24: 9430 + 410 = 9840
Step 25: 9840 + 410 = 10250
Step 26: 10250 + 410 = 10660
Step 27: 10660 + 410 = 11070
Step 28: 11070 + 410 = 11480
Step 29: 11480 + 410 = 11890
Step 30: 11890 + 410 = 12300
Step 31: 12300 + 410 = 12710
Step 32: 12710 + 410 = 13120
Step 33: 13120 + 410 = 13530
Step 34: 13530 + 410 = 13940
Step 35: 13940 + 410 = 14350
Step 36: 14350 + 410 = 14760
Step 37: 14760 + 410 = 15170
Step 38: 15170 + 410 = 15580
Step 39: 15580 + 410 = 15990
Step 40: 15990 + 410 = 16400
Step 41: 16400 + 410 = 16810
Step 42: 16810 + 410 = 17220
Step 43: 17220 + 410 = 17630
Step 44: 17630 + 410 = 18040
Step 45: 18040 + 410 = 18450
Step 46: 18450 + 410 = 18860
Step 47: 18860 + 410 = 19270
Step 48: 19270 + 410 = 19680
Step 49: 19680 + 410 = 20090
Step 50: 20090 + 410 = 20500
Step 51: 20500 + 410 = 20910
Step 52: 20910 + 410 = 21320
Step 53: 21320 + 410 = 21730
Step 54: 21730 + 410 = 22140
Step 55: 22140 + 410 = 22550
Step 56: 22550 + 410 = 22960
Step 57: 22960 + 410 = 23370
Step 58: 23370 + 410 = 23780
Step 59: 23780 + 410 = 24190
Step 60: 24190 + 410 = 24600
Step 61: 24600 + 410 = 25010
Step 62: 25010 + 410 = 25420
Step 63: 25420 + 410 = 25830
Step 64: 25830 + 410 = 26240
Step 65: 26240 + 410 = 26650
Step 66: 26650 + 410 = 27060
Step 67: 27060 + 410 = 27470
Step 68: 27470 + 410 = 27880
Step 69: 27880 + 410 = 28290
Step 70: 28290 + 410 = 28700
Step 71: 28700 + 410 = 29110

So, 410*71 = 29110