Let's divide 686872 by 27
The aim is to understand the frequency of 27 in 686872.

Going ahead to step 1:
The number 27 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 27

Advancing to step 2:
When dividing 68 by 27, we get 2 with a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 54 from 68 leaves us with 14.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 27

Moving on to step 3:
27 can be fit into 146 5 times, resulting in a remainder of 11.
The next digit of our result is 5. 
Result so far: 25.0
Subtract 135 from 146 to get 11.
Append the next digit (8) from the dividend to 11 and continue with: 118 / 27

Step 4:
27 goes into 118 4 times with a remainder of 10.
The next digit of our result is 4. 
Result so far: 254.0
If we take 108 away from 118, we end up with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 27

Advancing to step 5:
The number 27 fits into 107 3 times, leaving a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 2543.0
If we take 81 away from 107, we end up with 26.
Include the next digit (2) from the dividend after 26, then repeat: 262 / 27

Moving on to step 6:
If we divide 262 by 27, we get 9 and a remainder of 19.
The next digit of our result is 9. 
Result so far: 25439.0
If we take 243 away from 262, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
The number 27 fits into 190 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 25439.7
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
When dividing 10 by 27, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 25439.7
If we take 0 away from 10, 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 9:
When dividing 100 by 27, we get 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 25439.703
Deduct 81 from 100 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 10:
When dividing 190 by 27, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 25439.7037
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
10 divided by 27 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 25439.7037
Subtracting 0 from 10 leaves us 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.

Going ahead to step 12:
27 goes into 100 3 times with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 25439.703703
If we take 81 away from 100, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
If we divide 190 by 27, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 25439.7037037
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 14:
10 divided by 27 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 25439.7037037
Subtracting 0 from 10 leaves us 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.

The final outcome is 25439.7037037, with a leftover of 1e-08.