We look at the division of 908455 by 31 
The aim is to understand the frequency of 31 in 908455.

Going ahead to step 1:
31 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 31

Advancing to step 2:
90 divided by 31 is 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 2.0
If we take 62 away from 90, we end up with 28.
Take the next digit (8) from the dividend and append it to 28, then repeat: 288 / 31

On to step 3:
31 goes into 288 9 times with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we take 279 away from 288, we end up with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 31

Let's proceed to step 4:
31 goes into 94 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 293.0
If we subtract 93 from 94, we get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 31

Advancing to step 5:
If we divide 15 by 31, we get 0 and a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 2930.0
The remainder is 15 after subtracting 0 from 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 31

Step 6:
When dividing 155 by 31, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 29305.0
If we take 155 away from 155, we end up 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.

Moving on to step 7:
31 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 29305.0
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.

Moving on to step 8:
31 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 29305.0
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 final outcome is 29305.0, with a leftover of 0.0.