637278 ÷ 27 
The aim is to understand the frequency of 27 in 637278.

On to step 1:
When dividing 6 by 27, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 27

Advancing to step 2:
63 divided by 27 is 2 with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 54 from 63 and we're left with 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 27

Moving on to step 3:
27 goes into 97 3 times with a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 81 from 97 leaves us with 16.
Fetch the next digit (2) from the dividend, attach it to 16 and continue: 162 / 27

On to step 4:
When dividing 162 by 27, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 236.0
The remainder is 0 after subtracting 162 from 162.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 27

Step 5:
27 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 2360.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 27

Going ahead to step 6:
When dividing 78 by 27, we get 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 23602.0
Subtract 54 from 78 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
240 divided by 27 is 8 with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 23602.8
Deduct 216 from 240 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
27 goes into 240 8 times with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 23602.88
If we take 216 away from 240, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 23602.88 and a remainder of 0.024.