640656 divided by 27 
The aim is to understand the frequency of 27 in 640656.

Going ahead to step 1:
6 divided by 27 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 27

Let's proceed to step 2:
27 goes into 64 2 times with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 54 from 64 and we're left with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 27

Going ahead to step 3:
When dividing 100 by 27, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 81 away from 100, we end up with 19.
Fetch the next digit (6) from the dividend, attach it to 19 and continue: 196 / 27

Advancing to step 4:
27 goes into 196 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 237.0
Subtracting 189 from 196 leaves us with 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 27

On to step 5:
When dividing 75 by 27, we get 2 with a remainder of 21.
The number 2 becomes the next digit in our result. 
Result so far: 2372.0
If we take 54 away from 75, we end up with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 27

Step 6:
216 divided by 27 is 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 23728.0
If we take 216 away from 216, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
27 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 23728.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 27, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 23728.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 23728.0, and the remainder is 0.0.