913071 ÷ 31 
The aim is to understand the frequency of 31 in 913071.

On to step 1:
When dividing 9 by 31, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 31

On to step 2:
When dividing 91 by 31, we get 2 with a remainder of 29.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 29 after subtracting 62 from 91.
Take the next digit (3) from the dividend and append it to 29, then repeat: 293 / 31

On to step 3:
If we divide 293 by 31, we get 9 and a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 29.0
Deduct 279 from 293 and we're left with 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 31

Advancing to step 4:
The number 31 fits into 140 4 times, leaving a remainder of 16.
The next digit of our result is 4. 
Result so far: 294.0
The remainder is 16 after subtracting 124 from 140.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 31

Moving on to step 5:
The number 31 fits into 167 5 times, leaving a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 2945.0
If we subtract 155 from 167, we get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 31

Let's proceed to step 6:
121 divided by 31 is 3 with a remainder of 28.
Use 3 as the next digit of our solution. 
Result so far: 29453.0
Subtract 93 from 121 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
280 divided by 31 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 29453.9
The remainder is 1 after subtracting 279 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
31 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 29453.9
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
100 divided by 31 is 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 29453.903
Subtracting 93 from 100 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 10:
If we divide 70 by 31, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 29453.9032
The remainder is 8 after subtracting 62 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
31 can be fit into 80 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 29453.90322
Deduct 62 from 80 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 29453.90322 with a remaining 1.8e-05.