We're dividing 717721 by 27 
The aim is to understand the frequency of 27 in 717721.

On to step 1:
7 divided by 27 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 27

Going ahead to step 2:
When dividing 71 by 27, we get 2 with a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 17 after subtracting 54 from 71.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 27

Advancing to step 3:
27 goes into 177 6 times with a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 26.0
Subtracting 162 from 177 leaves us with 15.
Grab the next digit (7) from the dividend, add it to 15, then carry on: 157 / 27

Let's proceed to step 4:
When dividing 157 by 27, we get 5 with a remainder of 22.
The number 5 becomes the next digit in our result. 
Result so far: 265.0
If we subtract 135 from 157, we get 22.
Append the next digit (2) from the dividend to 22 and continue with: 222 / 27

Let's proceed to step 5:
If we divide 222 by 27, we get 8 and a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 2658.0
If we subtract 216 from 222, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 27

Moving on to step 6:
If we divide 61 by 27, we get 2 and a remainder of 7.
The next digit of our result is 2. 
Result so far: 26582.0
Subtract 54 from 61 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.

Advancing to step 7:
The number 27 fits into 70 2 times, leaving a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 26582.2
If we take 54 away from 70, we end up 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 8:
The number 27 fits into 160 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 26582.25
If we take 135 away from 160, we end up with 25.
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 9:
27 can be fit into 250 9 times, resulting in a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 26582.259
Subtracting 243 from 250 leaves us 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.

Let's proceed to step 10:
27 goes into 70 2 times with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 26582.2592
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.

Moving on to step 11:
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: 26582.25925
If we take 135 away from 160, we end up with 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 12:
If we divide 250 by 27, we get 9 and a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 26582.259259
Subtracting 243 from 250 leaves us 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.

Advancing to step 13:
27 goes into 70 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 26582.2592592
If we subtract 54 from 70, 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.

Moving on to step 14:
If we divide 160 by 27, we get 5 and a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 26582.25925925
If we take 135 away from 160, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 26582.25925925 with a remaining 2.5e-08.