We look at the division of 28272330 by 31 
The aim is to understand the frequency of 31 in 28272330.

Let's proceed to step 1:
2 divided by 31 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 31

On to step 2:
If we divide 28 by 31, we get 0 and a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Include the next digit (2) from the dividend after 28, then repeat: 282 / 31

Advancing to step 3:
The number 31 fits into 282 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 279 from 282 and we're left with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 31

Going ahead to step 4:
31 can be fit into 37 1 times, resulting in a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtracting 31 from 37 leaves us with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 31

On to step 5:
31 can be fit into 62 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 912.0
Subtract 62 from 62 to get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 31

Let's proceed to step 6:
If we divide 3 by 31, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 9120.0
Subtract 0 from 3 to get 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 31

Step 7:
31 goes into 33 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 91201.0
Subtract 31 from 33 to get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 31

Advancing to step 8:
If we divide 20 by 31, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 912010.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
31 goes into 200 6 times with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 912010.6
The remainder is 14 after subtracting 186 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 10:
The number 31 fits into 140 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 912010.64
If we subtract 124 from 140, 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.

Advancing to step 11:
160 divided by 31 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 912010.645
Deduct 155 from 160 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 12:
31 can be fit into 50 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 912010.6451
Subtract 31 from 50 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 13:
31 goes into 190 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 912010.64516
If we take 186 away from 190, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
31 can be fit into 40 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 912010.645161
Subtract 31 from 40 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 15:
The number 31 fits into 90 2 times, leaving a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 912010.6451612
Subtracting 62 from 90 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 16:
31 can be fit into 280 9 times, resulting in a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 912010.64516129
If we subtract 279 from 280, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 912010.64516129 with a balance of 1e-09.