It is so very simple and quick to get the answer if you use the calculator that comes with your computer. But since you are not able to use that simple application, the answer is 6888.
the number times a number to equal 82 is 41x2 and it equals 82
68886,888
It is 12 times 7 = 84
It is 42 times 2 = 84
109
The answer is 738.
84 x 4 is equal to 336.
252
84
756
84
83 x 1 82 + 1 84 - 1 83 ÷ 1