We look at the division of 631944 by 86 
The aim is to understand the frequency of 86 in 631944.

Going ahead to step 1:
86 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 86

Advancing to step 2:
63 divided by 86 is 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Take the next digit (1) from the dividend and append it to 63, then repeat: 631 / 86

Let's proceed to step 3:
86 goes into 631 7 times with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 602 from 631, we get 29.
Fetch the next digit (9) from the dividend, attach it to 29 and continue: 299 / 86

On to step 4:
299 divided by 86 is 3 with a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 73.0
Deduct 258 from 299 and we're left with 41.
Append the next digit (4) from the dividend to 41 and continue with: 414 / 86

Going ahead to step 5:
414 divided by 86 is 4 with a remainder of 70.
The next digit of our result is 4. 
Result so far: 734.0
If we take 344 away from 414, we end up with 70.
Take the next digit (4) from the dividend and append it to 70, then repeat: 704 / 86

Let's proceed to step 6:
86 goes into 704 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 7348.0
Subtracting 688 from 704 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
86 goes into 160 1 times with a remainder of 74.
The number 1 becomes the next digit in our result. 
Result so far: 7348.1
Deduct 86 from 160 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 8:
The number 86 fits into 740 8 times, leaving a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 7348.18
The remainder is 52 after subtracting 688 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 9:
The number 86 fits into 520 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 7348.186
If we take 516 away from 520, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
86 can be fit into 40 0 times, resulting in a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 7348.186
Subtract 0 from 40 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.

Going ahead to step 11:
The number 86 fits into 400 4 times, leaving a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 7348.18604
If we take 344 away from 400, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 12:
When dividing 560 by 86, we get 6 with a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 7348.186046
If we subtract 516 from 560, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 13:
The number 86 fits into 440 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 7348.1860465
Deduct 430 from 440 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.

On to step 14:
86 goes into 100 1 times with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 7348.18604651
Subtract 86 from 100 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 7348.18604651, and the remainder is 1.4e-08.