We look at the division of 530404 by 27 
The aim is to understand the frequency of 27 in 530404.

Advancing to step 1:
If we divide 5 by 27, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 27

Step 2:
27 can be fit into 53 1 times, resulting in a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 27 away from 53, we end up with 26.
Bring next digit (0) of the dividend behind the 26 and repeat the process: 260 / 27

Moving on to step 3:
The number 27 fits into 260 9 times, leaving a remainder of 17.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 243 from 260 leaves us with 17.
Fetch the next digit (4) from the dividend, attach it to 17 and continue: 174 / 27

Moving on to step 4:
When dividing 174 by 27, we get 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 196.0
Subtract 162 from 174 to get 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 27

On to step 5:
120 divided by 27 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 1964.0
The remainder is 12 after subtracting 108 from 120.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 27

Step 6:
The number 27 fits into 124 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 19644.0
If we subtract 108 from 124, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
If we divide 160 by 27, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 19644.5
The remainder is 25 after subtracting 135 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
250 divided by 27 is 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 19644.59
If we subtract 243 from 250, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
If we divide 70 by 27, we get 2 and a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 19644.592
Subtract 54 from 70 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
27 can be fit into 160 5 times, resulting in a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 19644.5925
The remainder is 25 after subtracting 135 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 11:
If we divide 250 by 27, we get 9 and a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 19644.59259
If we subtract 243 from 250, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 12:
70 divided by 27 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 19644.592592
Subtracting 54 from 70 leaves us 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.

Let's proceed to step 13:
The number 27 fits into 160 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 19644.5925925
If we subtract 135 from 160, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 14:
When dividing 250 by 27, we get 9 with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 19644.59259259
If we take 243 away from 250, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

After the division, we end up with 19644.59259259 and a remainder of 7e-09.