We look at the division of 977070 by 70 
The aim is to understand the frequency of 70 in 977070.

Step 1:
9 divided by 70 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 70

On to step 2:
70 goes into 97 1 times with a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 70 from 97 leaves us with 27.
Bring next digit (7) of the dividend behind the 27 and repeat the process: 277 / 70

Let's proceed to step 3:
If we divide 277 by 70, we get 3 and a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 210 away from 277, we end up with 67.
Include the next digit (0) from the dividend after 67, then repeat: 670 / 70

Moving on to step 4:
70 can be fit into 670 9 times, resulting in a remainder of 40.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
If we subtract 630 from 670, we get 40.
Fetch the next digit (7) from the dividend, attach it to 40 and continue: 407 / 70

Going ahead to step 5:
When dividing 407 by 70, we get 5 with a remainder of 57.
Use 5 as the next digit of our solution. 
Result so far: 1395.0
Subtract 350 from 407 to get 57.
Take the next digit (0) from the dividend and append it to 57, then repeat: 570 / 70

Advancing to step 6:
The number 70 fits into 570 8 times, leaving a remainder of 10.
The next digit of our result is 8. 
Result so far: 13958.0
If we take 560 away from 570, 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.

Advancing to step 7:
When dividing 100 by 70, we get 1 with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 13958.1
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.

Going ahead to step 8:
If we divide 300 by 70, we get 4 and a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 13958.14
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.

Going ahead to step 9:
70 can be fit into 200 2 times, resulting in a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 13958.142
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.

Going ahead to step 10:
70 goes into 600 8 times with a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 13958.1428
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
70 goes into 400 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 13958.14285
Subtract 350 from 400 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.

On to step 12:
The number 70 fits into 500 7 times, leaving a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 13958.142857
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.

Advancing to step 13:
100 divided by 70 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 13958.1428571
If we take 70 away from 100, we end up 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 14:
300 divided by 70 is 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 13958.14285714
The remainder is 20 after subtracting 280 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 13958.14285714 with a remaining 2e-08.