We look at the division of 599744 by 86 
The aim is to understand the frequency of 86 in 599744.

Step 1:
5 divided by 86 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 86

Step 2:
When dividing 59 by 86, we get 0 with a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Append the next digit (9) from the dividend to 59 and continue with: 599 / 86

Going ahead to step 3:
When dividing 599 by 86, we get 6 with a remainder of 83.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 516 from 599 leaves us with 83.
Grab the next digit (7) from the dividend, add it to 83, then carry on: 837 / 86

Advancing to step 4:
The number 86 fits into 837 9 times, leaving a remainder of 63.
The number 9 becomes the next digit in our result. 
Result so far: 69.0
Subtracting 774 from 837 leaves us with 63.
Take the next digit (4) from the dividend and append it to 63, then repeat: 634 / 86

Advancing to step 5:
When dividing 634 by 86, we get 7 with a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 697.0
Deduct 602 from 634 and we're left with 32.
Include the next digit (4) from the dividend after 32, then repeat: 324 / 86

On to step 6:
324 divided by 86 is 3 with a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 6973.0
Subtract 258 from 324 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 7:
86 can be fit into 660 7 times, resulting in a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 6973.7
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 8:
86 goes into 580 6 times with a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 6973.76
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 9:
When dividing 640 by 86, we get 7 with a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 6973.767
If we subtract 602 from 640, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
When dividing 380 by 86, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 6973.7674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
86 can be fit into 360 4 times, resulting in a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 6973.76744
If we take 344 away from 360, we end up 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.

The quotient of the division is 6973.76744, and the remainder is 1.6e-05.