We look at the division of 699109 by 70 
The aim is to understand the frequency of 70 in 699109.

Step 1:
70 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 70

Advancing to step 2:
If we divide 69 by 70, we get 0 and a remainder of 69.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Fetch the next digit (9) from the dividend, attach it to 69 and continue: 699 / 70

Advancing to step 3:
70 can be fit into 699 9 times, resulting in a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 630 from 699, we get 69.
Fetch the next digit (1) from the dividend, attach it to 69 and continue: 691 / 70

Going ahead to step 4:
691 divided by 70 is 9 with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 99.0
Deduct 630 from 691 and we're left with 61.
Bring next digit (0) of the dividend behind the 61 and repeat the process: 610 / 70

Moving on to step 5:
The number 70 fits into 610 8 times, leaving a remainder of 50.
Put 8 as the next digit of the answer. 
Result so far: 998.0
Subtracting 560 from 610 leaves us with 50.
Grab the next digit (9) from the dividend, add it to 50, then carry on: 509 / 70

Moving on to step 6:
If we divide 509 by 70, we get 7 and a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 9987.0
The remainder is 19 after subtracting 490 from 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
70 goes into 190 2 times with a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 9987.2
Subtract 140 from 190 to 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.

Let's proceed to step 8:
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: 9987.27
The remainder is 10 after subtracting 490 from 500.
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.
Record the quotient 1 as the next digit in the result. 
Result so far: 9987.271
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.

Advancing to step 10:
The number 70 fits into 300 4 times, leaving a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 9987.2714
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.

Advancing to step 11:
If we divide 200 by 70, we get 2 and a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 9987.27142
The remainder is 60 after subtracting 140 from 200.
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:
70 goes into 600 8 times with a remainder of 40.
The next digit of our result is 8. 
Result so far: 9987.271428
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.

On to step 13:
70 can be fit into 400 5 times, resulting in a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 9987.2714285
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.

Going ahead to step 14:
If we divide 500 by 70, we get 7 and a remainder of 10.
The next digit of our result is 7. 
Result so far: 9987.27142857
If we subtract 490 from 500, we 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 9987.27142857 with a remaining 1e-08.