688371 divided by 70 
The aim is to understand the frequency of 70 in 688371.

Going ahead to step 1:
If we divide 6 by 70, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 70

Advancing to step 2:
70 goes into 68 0 times with a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Include the next digit (8) from the dividend after 68, then repeat: 688 / 70

Let's proceed to step 3:
70 can be fit into 688 9 times, resulting in a remainder of 58.
The next digit of our result is 9. 
Result so far: 9.0
If we take 630 away from 688, we end up with 58.
Grab the next digit (3) from the dividend, add it to 58, then carry on: 583 / 70

Let's proceed to step 4:
583 divided by 70 is 8 with a remainder of 23.
The next digit of our result is 8. 
Result so far: 98.0
Deduct 560 from 583 and we're left with 23.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 70

Going ahead to step 5:
The number 70 fits into 237 3 times, leaving a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 983.0
If we subtract 210 from 237, we get 27.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 70

Moving on to step 6:
The number 70 fits into 271 3 times, leaving a remainder of 61.
The next digit of our result is 3. 
Result so far: 9833.0
Subtracting 210 from 271 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 7:
The number 70 fits into 610 8 times, leaving a remainder of 50.
The next digit of our result is 8. 
Result so far: 9833.8
The remainder is 50 after subtracting 560 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
500 divided by 70 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 9833.87
If we take 490 away from 500, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
70 goes into 100 1 times with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 9833.871
Deduct 70 from 100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
300 divided by 70 is 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 9833.8714
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
70 goes into 200 2 times with a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 9833.87142
If we subtract 140 from 200, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
If we divide 600 by 70, we get 8 and a remainder of 40.
The next digit of our result is 8. 
Result so far: 9833.871428
If we subtract 560 from 600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
The number 70 fits into 400 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 9833.8714285
If we subtract 350 from 400, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
When dividing 500 by 70, we get 7 with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 9833.87142857
Subtract 490 from 500 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 9833.87142857 with a remaining 1e-08.