We're dividing 37581 by 27 
The aim is to understand the frequency of 27 in 37581.

Step 1:
3 divided by 27 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 27

Step 2:
If we divide 37 by 27, we get 1 and a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 27 away from 37, we end up with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 27

Let's proceed to step 3:
If we divide 105 by 27, we get 3 and a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 81 from 105 and we're left with 24.
Grab the next digit (8) from the dividend, add it to 24, then carry on: 248 / 27

Going ahead to step 4:
The number 27 fits into 248 9 times, leaving a remainder of 5.
The next digit of our result is 9. 
Result so far: 139.0
If we subtract 243 from 248, we get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 27

Moving on to step 5:
The number 27 fits into 51 1 times, leaving a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1391.0
Deduct 27 from 51 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.

Let's proceed to step 6:
The number 27 fits into 240 8 times, leaving a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 1391.8
Subtract 216 from 240 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:
27 can be fit into 240 8 times, resulting in a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 1391.88
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.

The quotient of the division is 1391.88, and the remainder is 0.024.