50979891 divided by 70 
The aim is to understand the frequency of 70 in 50979891.

Going ahead to step 1:
5 divided by 70 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 70

On to step 2:
The number 70 fits into 50 0 times, leaving a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 50, we get 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 70

Moving on to step 3:
The number 70 fits into 509 7 times, leaving a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 490 from 509 leaves us with 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 70

Advancing to step 4:
70 can be fit into 197 2 times, resulting in a remainder of 57.
Use 2 as the next digit of our solution. 
Result so far: 72.0
Subtract 140 from 197 to get 57.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 70

On to step 5:
If we divide 579 by 70, we get 8 and a remainder of 19.
The next digit of our result is 8. 
Result so far: 728.0
Deduct 560 from 579 and we're left with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 70

Moving on to step 6:
If we divide 198 by 70, we get 2 and a remainder of 58.
Write down 2 as next digit of the result. 
Result so far: 7282.0
Subtract 140 from 198 to get 58.
Fetch the next digit (9) from the dividend, attach it to 58 and continue: 589 / 70

Step 7:
70 goes into 589 8 times with a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 72828.0
If we take 560 away from 589, we end up with 29.
Take the next digit (1) from the dividend and append it to 29, then repeat: 291 / 70

On to step 8:
291 divided by 70 is 4 with a remainder of 11.
Use 4 as the next digit of our solution. 
Result so far: 728284.0
Subtracting 280 from 291 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
The number 70 fits into 110 1 times, leaving a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 728284.1
Subtract 70 from 110 to 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.

Moving on to step 10:
If we divide 400 by 70, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 728284.15
Subtracting 350 from 400 leaves us 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.

Step 11:
The number 70 fits into 500 7 times, leaving a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 728284.157
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.

Moving on to step 12:
If we divide 100 by 70, we get 1 and a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 728284.1571
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 13:
70 goes into 300 4 times with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 728284.15714
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.

Moving on to step 14:
70 goes into 200 2 times with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 728284.157142
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.

On to step 15:
600 divided by 70 is 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 728284.1571428
If we take 560 away from 600, we end up 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.

Moving on to step 16:
When dividing 400 by 70, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 728284.15714285
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.

Our division results in 728284.15714285 with a remaining 5e-08.