We're dividing 748259 by 86 
The aim is to understand the frequency of 86 in 748259.

Advancing to step 1:
7 divided by 86 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 86

Step 2:
If we divide 74 by 86, we get 0 and a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Append the next digit (8) from the dividend to 74 and continue with: 748 / 86

Going ahead to step 3:
The number 86 fits into 748 8 times, leaving a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 688 away from 748, we end up with 60.
Take the next digit (2) from the dividend and append it to 60, then repeat: 602 / 86

Moving on to step 4:
602 divided by 86 is 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 87.0
The remainder is 0 after subtracting 602 from 602.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 86

Let's proceed to step 5:
86 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 870.0
If we subtract 0 from 5, we get 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 86

Going ahead to step 6:
59 divided by 86 is 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 8700.0
Deduct 0 from 59 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 7:
If we divide 590 by 86, we get 6 and a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 8700.6
Subtract 516 from 590 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 8:
If we divide 740 by 86, we get 8 and a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 8700.68
If we subtract 688 from 740, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
When dividing 520 by 86, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 8700.686
Subtract 516 from 520 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
When dividing 40 by 86, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 8700.686
Deduct 0 from 40 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.

Advancing to step 11:
400 divided by 86 is 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 8700.68604
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.

On to step 12:
When dividing 560 by 86, we get 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 8700.686046
Subtract 516 from 560 to 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.

Advancing to step 13:
86 can be fit into 440 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 8700.6860465
If we take 430 away from 440, 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.

Let's proceed 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: 8700.68604651
If we take 86 away from 100, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 8700.68604651 and a remainder of 1.4e-08.