We're dividing 439452 by 86 
The aim is to understand the frequency of 86 in 439452.

Step 1:
86 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 86

Advancing to step 2:
When dividing 43 by 86, we get 0 with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Append the next digit (9) from the dividend to 43 and continue with: 439 / 86

Step 3:
86 goes into 439 5 times with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 9 after subtracting 430 from 439.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 86

On to step 4:
86 goes into 94 1 times with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we subtract 86 from 94, we get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 86

Advancing to step 5:
86 goes into 85 0 times with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 510.0
If we take 0 away from 85, we end up with 85.
Include the next digit (2) from the dividend after 85, then repeat: 852 / 86

Let's proceed to step 6:
86 can be fit into 852 9 times, resulting in a remainder of 78.
Record the quotient 9 as the next digit in the result. 
Result so far: 5109.0
Subtracting 774 from 852 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 7:
If we divide 780 by 86, we get 9 and a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 5109.9
If we subtract 774 from 780, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
When dividing 60 by 86, we get 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 5109.9
If we subtract 0 from 60, 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.

Moving on to step 9:
86 goes into 600 6 times with a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 5109.906
Deduct 516 from 600 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 10:
If we divide 840 by 86, we get 9 and a remainder of 66.
The number 9 becomes the next digit in our result. 
Result so far: 5109.9069
If we take 774 away from 840, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 11:
86 can be fit into 660 7 times, resulting in a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 5109.90697
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.

Going ahead to step 12:
The number 86 fits into 580 6 times, leaving a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 5109.906976
If we subtract 516 from 580, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 13:
640 divided by 86 is 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 5109.9069767
Subtracting 602 from 640 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 14:
86 goes into 380 4 times with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 5109.90697674
Subtract 344 from 380 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Our division results in 5109.90697674 with a remaining 3.6e-08.