717002 ÷ 31 
The aim is to understand the frequency of 31 in 717002.

Going ahead to step 1:
31 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 31

Going ahead to step 2:
When dividing 71 by 31, we get 2 with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 62 away from 71, we end up with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 31

On to step 3:
97 divided by 31 is 3 with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtract 93 from 97 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 31

On to step 4:
40 divided by 31 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 231.0
If we subtract 31 from 40, we get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 31

On to step 5:
31 goes into 90 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 2312.0
The remainder is 28 after subtracting 62 from 90.
Take the next digit (2) from the dividend and append it to 28, then repeat: 282 / 31

Step 6:
31 goes into 282 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 23129.0
The remainder is 3 after subtracting 279 from 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
When dividing 30 by 31, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 23129.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
31 goes into 300 9 times with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 23129.09
Deduct 279 from 300 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 9:
The number 31 fits into 210 6 times, leaving a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 23129.096
The remainder is 24 after subtracting 186 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
The number 31 fits into 240 7 times, leaving a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 23129.0967
Subtracting 217 from 240 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
If we divide 230 by 31, we get 7 and a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 23129.09677
If we subtract 217 from 230, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 23129.09677 with a remainder of 1.3e-05.