We look at the division of 631780 by 27 
The aim is to understand the frequency of 27 in 631780.

Let's proceed to step 1:
The number 27 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 27

Going ahead to step 2:
27 goes into 63 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 54 from 63 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 27

Advancing to step 3:
27 can be fit into 91 3 times, resulting in a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we take 81 away from 91, we end up with 10.
Take the next digit (7) from the dividend and append it to 10, then repeat: 107 / 27

On to step 4:
If we divide 107 by 27, we get 3 and a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 233.0
Subtracting 81 from 107 leaves us with 26.
Take the next digit (8) from the dividend and append it to 26, then repeat: 268 / 27

Going ahead to step 5:
If we divide 268 by 27, we get 9 and a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 2339.0
If we take 243 away from 268, we end up with 25.
Take the next digit (0) from the dividend and append it to 25, then repeat: 250 / 27

Going ahead to step 6:
27 can be fit into 250 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 23399.0
Deduct 243 from 250 and we're left 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.

On to step 7:
27 goes into 70 2 times with a remainder of 16.
The next digit of our result is 2. 
Result so far: 23399.2
Deduct 54 from 70 and we're left 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.

On to step 8:
27 goes into 160 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 23399.25
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.

Step 9:
250 divided by 27 is 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 23399.259
Subtract 243 from 250 to 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.

On to step 10:
The number 27 fits into 70 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 23399.2592
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.

Moving on to step 11:
When dividing 160 by 27, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 23399.25925
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.

Let's proceed to step 12:
27 can be fit into 250 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 23399.259259
Subtract 243 from 250 to 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.

On to step 13:
27 goes into 70 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 23399.2592592
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.

Moving on to step 14:
27 can be fit into 160 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 23399.25925925
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.

The final result is 23399.25925925 with a remainder of 2.5e-08.