23539 divided by 27 
The aim is to understand the frequency of 27 in 23539.

Going ahead to step 1:
When dividing 2 by 27, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 27

Advancing to step 2:
27 goes into 23 0 times with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 27

Moving on to step 3:
If we divide 235 by 27, we get 8 and a remainder of 19.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 19 after subtracting 216 from 235.
Take the next digit (3) from the dividend and append it to 19, then repeat: 193 / 27

On to step 4:
If we divide 193 by 27, we get 7 and a remainder of 4.
The next digit of our result is 7. 
Result so far: 87.0
Deduct 189 from 193 and we're left with 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 27

Let's proceed to step 5:
49 divided by 27 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 871.0
If we subtract 27 from 49, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 6:
If we divide 220 by 27, we get 8 and a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 871.8
Subtracting 216 from 220 leaves us 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.

Step 7:
27 goes into 40 1 times with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 871.81
If we take 27 away from 40, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 8:
When dividing 130 by 27, we get 4 with a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 871.814
Subtracting 108 from 130 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
When dividing 220 by 27, we get 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 871.8148
If we subtract 216 from 220, we 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:
27 goes into 40 1 times with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 871.81481
If we take 27 away from 40, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 11:
If we divide 130 by 27, we get 4 and a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 871.814814
The remainder is 22 after subtracting 108 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 12:
The number 27 fits into 220 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 871.8148148
If we subtract 216 from 220, we 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.

Step 13:
If we divide 40 by 27, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 871.81481481
The remainder is 13 after subtracting 27 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 871.81481481, with a leftover of 1.3e-08.