We look at the division of 225841 by 31 
The aim is to understand the frequency of 31 in 225841.

Moving on to step 1:
When dividing 2 by 31, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 31

Let's proceed to step 2:
31 can be fit into 22 0 times, resulting in a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 22 and we're left with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 31

Going ahead to step 3:
225 divided by 31 is 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 217 from 225 leaves us with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 31

Step 4:
When dividing 88 by 31, we get 2 with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we take 62 away from 88, we end up with 26.
Fetch the next digit (4) from the dividend, attach it to 26 and continue: 264 / 31

Going ahead to step 5:
31 can be fit into 264 8 times, resulting in a remainder of 16.
The next digit of our result is 8. 
Result so far: 728.0
Subtracting 248 from 264 leaves us with 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 31

Moving on to step 6:
The number 31 fits into 161 5 times, leaving a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 7285.0
If we take 155 away from 161, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
60 divided by 31 is 1 with a remainder of 29.
The next digit of our result is 1. 
Result so far: 7285.1
The remainder is 29 after subtracting 31 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 8:
If we divide 290 by 31, we get 9 and a remainder of 11.
The next digit of our result is 9. 
Result so far: 7285.19
Subtracting 279 from 290 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
If we divide 110 by 31, we get 3 and a remainder of 17.
The next digit of our result is 3. 
Result so far: 7285.193
Deduct 93 from 110 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
If we divide 170 by 31, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 7285.1935
The remainder is 15 after subtracting 155 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
The number 31 fits into 150 4 times, leaving a remainder of 26.
The next digit of our result is 4. 
Result so far: 7285.19354
If we subtract 124 from 150, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 12:
260 divided by 31 is 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 7285.193548
If we subtract 248 from 260, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
31 goes into 120 3 times with a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 7285.1935483
If we take 93 away from 120, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 14:
If we divide 270 by 31, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 7285.19354838
Subtract 248 from 270 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Our division results in 7285.19354838 with a remaining 2.2e-08.