Without delay, let's solve this. We've got 856 and we will be multiplying it by 43, that is, adding 856 to itself 43 times.
Step 1: 0 + 856 = 856
Step 2: 856 + 856 = 1712
Step 3: 1712 + 856 = 2568
Step 4: 2568 + 856 = 3424
Step 5: 3424 + 856 = 4280
Step 6: 4280 + 856 = 5136
Step 7: 5136 + 856 = 5992
Step 8: 5992 + 856 = 6848
Step 9: 6848 + 856 = 7704
Step 10: 7704 + 856 = 8560
Step 11: 8560 + 856 = 9416
Step 12: 9416 + 856 = 10272
Step 13: 10272 + 856 = 11128
Step 14: 11128 + 856 = 11984
Step 15: 11984 + 856 = 12840
Step 16: 12840 + 856 = 13696
Step 17: 13696 + 856 = 14552
Step 18: 14552 + 856 = 15408
Step 19: 15408 + 856 = 16264
Step 20: 16264 + 856 = 17120
Step 21: 17120 + 856 = 17976
Step 22: 17976 + 856 = 18832
Step 23: 18832 + 856 = 19688
Step 24: 19688 + 856 = 20544
Step 25: 20544 + 856 = 21400
Step 26: 21400 + 856 = 22256
Step 27: 22256 + 856 = 23112
Step 28: 23112 + 856 = 23968
Step 29: 23968 + 856 = 24824
Step 30: 24824 + 856 = 25680
Step 31: 25680 + 856 = 26536
Step 32: 26536 + 856 = 27392
Step 33: 27392 + 856 = 28248
Step 34: 28248 + 856 = 29104
Step 35: 29104 + 856 = 29960
Step 36: 29960 + 856 = 30816
Step 37: 30816 + 856 = 31672
Step 38: 31672 + 856 = 32528
Step 39: 32528 + 856 = 33384
Step 40: 33384 + 856 = 34240
Step 41: 34240 + 856 = 35096
Step 42: 35096 + 856 = 35952
Step 43: 35952 + 856 = 36808

So, 856*43 = 36808