We divide 89930 by 31
The aim is to understand the frequency of 31 in 89930.

Let's proceed to step 1:
If we divide 8 by 31, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 31

Advancing to step 2:
31 can be fit into 89 2 times, resulting in a remainder of 27.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 62 from 89 to get 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 31

Moving on to step 3:
31 can be fit into 279 9 times, resulting in a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
If we take 279 away from 279, we end up with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 31

Moving on to step 4:
When dividing 3 by 31, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 290.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 31

On to step 5:
The number 31 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 2900.0
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 6:
300 divided by 31 is 9 with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 2900.9
If we take 279 away from 300, we end up 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.

Going ahead to step 7:
When dividing 210 by 31, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 2900.96
If we take 186 away from 210, 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.

Let's proceed to step 8:
31 can be fit into 240 7 times, resulting in a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 2900.967
If we subtract 217 from 240, we get 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 9:
When dividing 230 by 31, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 2900.9677
The remainder is 13 after subtracting 217 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 2900.9677 with a balance of 0.00013.