690107 ÷ 70 
The aim is to understand the frequency of 70 in 690107.

On to step 1:
6 divided by 70 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 70

On to step 2:
If we divide 69 by 70, we get 0 and a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 69 after subtracting 0 from 69.
Grab the next digit (0) from the dividend, add it to 69, then carry on: 690 / 70

On to step 3:
The number 70 fits into 690 9 times, leaving a remainder of 60.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 630 away from 690, we end up with 60.
Include the next digit (1) from the dividend after 60, then repeat: 601 / 70

On to step 4:
70 can be fit into 601 8 times, resulting in a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 98.0
Subtracting 560 from 601 leaves us with 41.
Append the next digit (0) from the dividend to 41 and continue with: 410 / 70

Moving on to step 5:
70 goes into 410 5 times with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 985.0
Deduct 350 from 410 and we're left with 60.
Grab the next digit (7) from the dividend, add it to 60, then carry on: 607 / 70

Going ahead to step 6:
When dividing 607 by 70, we get 8 with a remainder of 47.
Record the quotient 8 as the next digit in the result. 
Result so far: 9858.0
If we subtract 560 from 607, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
470 divided by 70 is 6 with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 9858.6
If we subtract 420 from 470, 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.

Moving on to step 8:
70 goes into 500 7 times with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 9858.67
Subtracting 490 from 500 leaves us 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.

Let's proceed to step 9:
If we divide 100 by 70, we get 1 and a remainder of 30.
The next digit of our result is 1. 
Result so far: 9858.671
Subtracting 70 from 100 leaves us 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.

Moving on to step 10:
70 goes into 300 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 9858.6714
Deduct 280 from 300 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
70 goes into 200 2 times with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 9858.67142
Subtracting 140 from 200 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
600 divided by 70 is 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 9858.671428
The remainder is 40 after subtracting 560 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
70 goes into 400 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 9858.6714285
Deduct 350 from 400 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 14:
The number 70 fits into 500 7 times, leaving a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 9858.67142857
Deduct 490 from 500 and we're left 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.

The final result is 9858.67142857 with a remainder of 1e-08.