90341235 divided by 931 
The aim is to understand the frequency of 931 in 90341235.

Moving on to step 1:
When dividing 9 by 931, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 931

Moving on to step 2:
90 divided by 931 is 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Bring next digit (3) of the dividend behind the 90 and repeat the process: 903 / 931

Moving on to step 3:
If we divide 903 by 931, we get 0 and a remainder of 903.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 903, we end up with 903.
Fetch the next digit (4) from the dividend, attach it to 903 and continue: 9034 / 931

Moving on to step 4:
9034 divided by 931 is 9 with a remainder of 655.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 8379 from 9034 to get 655.
Grab the next digit (1) from the dividend, add it to 655, then carry on: 6551 / 931

On to step 5:
When dividing 6551 by 931, we get 7 with a remainder of 34.
The next digit of our result is 7. 
Result so far: 97.0
If we take 6517 away from 6551, we end up with 34.
Append the next digit (2) from the dividend to 34 and continue with: 342 / 931

Moving on to step 6:
If we divide 342 by 931, we get 0 and a remainder of 342.
The number 0 becomes the next digit in our result. 
Result so far: 970.0
If we subtract 0 from 342, we get 342.
Grab the next digit (3) from the dividend, add it to 342, then carry on: 3423 / 931

Going ahead to step 7:
931 goes into 3423 3 times with a remainder of 630.
Put 3 as the next digit of the answer. 
Result so far: 9703.0
Subtracting 2793 from 3423 leaves us with 630.
Grab the next digit (5) from the dividend, add it to 630, then carry on: 6305 / 931

On to step 8:
The number 931 fits into 6305 6 times, leaving a remainder of 719.
The number 6 becomes the next digit in our result. 
Result so far: 97036.0
Deduct 5586 from 6305 and we're left with 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7190, and continue the process.

On to step 9:
931 can be fit into 7190 7 times, resulting in a remainder of 673.
The number 7 becomes the next digit in our result. 
Result so far: 97036.7
If we subtract 6517 from 7190, we get 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

On to step 10:
931 goes into 6730 7 times with a remainder of 213.
Record the quotient 7 as the next digit in the result. 
Result so far: 97036.77
Deduct 6517 from 6730 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Our division results in 97036.77 with a remaining 0.213.