90253818 divided by 923 
The aim is to understand the frequency of 923 in 90253818.

Moving on to step 1:
923 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 923

Advancing to step 2:
When dividing 90 by 923, we get 0 with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Bring next digit (2) of the dividend behind the 90 and repeat the process: 902 / 923

On to step 3:
The number 923 fits into 902 0 times, leaving a remainder of 902.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 902 after subtracting 0 from 902.
Include the next digit (5) from the dividend after 902, then repeat: 9025 / 923

Advancing to step 4:
923 goes into 9025 9 times with a remainder of 718.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 8307 from 9025 and we're left with 718.
Include the next digit (3) from the dividend after 718, then repeat: 7183 / 923

Moving on to step 5:
923 goes into 7183 7 times with a remainder of 722.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
If we take 6461 away from 7183, we end up with 722.
Include the next digit (8) from the dividend after 722, then repeat: 7228 / 923

On to step 6:
When dividing 7228 by 923, we get 7 with a remainder of 767.
Record the quotient 7 as the next digit in the result. 
Result so far: 977.0
Deduct 6461 from 7228 and we're left with 767.
Bring next digit (1) of the dividend behind the 767 and repeat the process: 7671 / 923

On to step 7:
923 can be fit into 7671 8 times, resulting in a remainder of 287.
The number 8 becomes the next digit in our result. 
Result so far: 9778.0
The remainder is 287 after subtracting 7384 from 7671.
Grab the next digit (8) from the dividend, add it to 287, then carry on: 2878 / 923

Advancing to step 8:
When dividing 2878 by 923, we get 3 with a remainder of 109.
Record the quotient 3 as the next digit in the result. 
Result so far: 97783.0
The remainder is 109 after subtracting 2769 from 2878.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 9:
923 can be fit into 1090 1 times, resulting in a remainder of 167.
Put 1 as the next digit of the answer. 
Result so far: 97783.1
Subtract 923 from 1090 to get 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Step 10:
The number 923 fits into 1670 1 times, leaving a remainder of 747.
Put 1 as the next digit of the answer. 
Result so far: 97783.11
If we take 923 away from 1670, we end up with 747.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

The final result is 97783.11 with a remainder of 0.747.