We look at the division of 535772 by 86 
The aim is to understand the frequency of 86 in 535772.

Moving on to step 1:
If we divide 5 by 86, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 86

Going ahead to step 2:
86 can be fit into 53 0 times, resulting in a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Append the next digit (5) from the dividend to 53 and continue with: 535 / 86

Let's proceed to step 3:
86 can be fit into 535 6 times, resulting in a remainder of 19.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 516 from 535 and we're left with 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 86

Advancing to step 4:
If we divide 197 by 86, we get 2 and a remainder of 25.
Use 2 as the next digit of our solution. 
Result so far: 62.0
If we take 172 away from 197, we end up with 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 86

On to step 5:
257 divided by 86 is 2 with a remainder of 85.
The next digit of our result is 2. 
Result so far: 622.0
The remainder is 85 after subtracting 172 from 257.
Append the next digit (2) from the dividend to 85 and continue with: 852 / 86

Moving on to step 6:
86 can be fit into 852 9 times, resulting in a remainder of 78.
Use 9 as the next digit of our solution. 
Result so far: 6229.0
Subtract 774 from 852 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 7:
86 goes into 780 9 times with a remainder of 6.
The next digit of our result is 9. 
Result so far: 6229.9
If we take 774 away from 780, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
The number 86 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 6229.9
Subtract 0 from 60 to 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.

Advancing to step 9:
The number 86 fits into 600 6 times, leaving a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 6229.906
The remainder is 84 after subtracting 516 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 10:
The number 86 fits into 840 9 times, leaving a remainder of 66.
Use 9 as the next digit of our solution. 
Result so far: 6229.9069
Deduct 774 from 840 and we're left 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.

On to step 11:
If we divide 660 by 86, we get 7 and a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 6229.90697
If we take 602 away from 660, we end up with 58.
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 12:
86 can be fit into 580 6 times, resulting in a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 6229.906976
If we take 516 away from 580, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 13:
If we divide 640 by 86, we get 7 and a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 6229.9069767
If we take 602 away from 640, we end up 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.

Going ahead to step 14:
If we divide 380 by 86, we get 4 and a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 6229.90697674
If we subtract 344 from 380, we 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.

The quotient of the division is 6229.90697674, and the remainder is 3.6e-08.