It is easier and quicker to answer this question by using the calculator in your computer compared with posting it on WA. But, since you are obviously not capable of carrying out that simple task, the answer is 0.1
10
70
The answer is 70, as if you work backwards by multiplying 10 and 7, you will get 70.
70 divided by 7 = 10
70
35000 divided by 70 = 50035000/70 = 3500/7........500....7|3500......-35======........0
7
70
7
70 divided by 10 = 7
70
70.4286
7 divided by one tenth is 707/0.1 = 7*10 = 70