We divide 71591670 by 5
The aim is to understand the frequency of 5 in 71591670.

Advancing to step 1:
5 can be fit into 7 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 2 after subtracting 5 from 7.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 5

Advancing to step 2:
When dividing 21 by 5, we get 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 20 from 21 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 5

Going ahead to step 3:
5 can be fit into 15 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
If we take 15 away from 15, we end up with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 5

Going ahead to step 4:
9 divided by 5 is 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1431.0
If we subtract 5 from 9, we get 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 5

On to step 5:
If we divide 41 by 5, we get 8 and a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 14318.0
Subtracting 40 from 41 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 5

Going ahead to step 6:
If we divide 16 by 5, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 143183.0
The remainder is 1 after subtracting 15 from 16.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 5

Moving on to step 7:
When dividing 17 by 5, we get 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 1431833.0
If we take 15 away from 17, we end up with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 5

Step 8:
5 goes into 20 4 times with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 14318334.0
Deduct 20 from 20 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
When dividing 0 by 5, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 14318334.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
0 divided by 5 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 14318334.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 14318334.0, and the remainder is 0.0.