We're dividing 803923 by 31 
The aim is to understand the frequency of 31 in 803923.

Going ahead to step 1:
If we divide 8 by 31, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 31

Advancing to step 2:
80 divided by 31 is 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 2.0
If we take 62 away from 80, we end up with 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 31

Step 3:
If we divide 183 by 31, we get 5 and a remainder of 28.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtract 155 from 183 to get 28.
Fetch the next digit (9) from the dividend, attach it to 28 and continue: 289 / 31

Step 4:
The number 31 fits into 289 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 259.0
The remainder is 10 after subtracting 279 from 289.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 31

Moving on to step 5:
31 can be fit into 102 3 times, resulting in a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 2593.0
The remainder is 9 after subtracting 93 from 102.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 31

Let's proceed to step 6:
31 can be fit into 93 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 25933.0
Deduct 93 from 93 and we're left 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.

Let's proceed to step 7:
31 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 25933.0
If we take 0 away from 0, 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 8:
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: 25933.0
If we take 0 away from 0, 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.

After the division, we end up with 25933.0 and a remainder of 0.0.