Let's divide 102486 by 31
The aim is to understand the frequency of 31 in 102486.

Moving on to step 1:
1 divided by 31 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 31

Moving on to step 2:
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: 0.0
If we subtract 0 from 10, we get 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 31

Going ahead to step 3:
If we divide 102 by 31, we get 3 and a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 93 from 102 to get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 31

Moving on to step 4:
31 can be fit into 94 3 times, resulting in a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 33.0
If we subtract 93 from 94, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 31

Step 5:
When dividing 18 by 31, we get 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 330.0
Subtracting 0 from 18 leaves us with 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 31

Let's proceed to step 6:
When dividing 186 by 31, we get 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 3306.0
Subtract 186 from 186 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
31 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3306.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
31 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 3306.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 3306.0, and the remainder is 0.0.