831105 ÷ 25 
The aim is to understand the frequency of 25 in 831105.

Step 1:
The number 25 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 25

Let's proceed to step 2:
The number 25 fits into 83 3 times, leaving a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 75 away from 83, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 25

Moving on to step 3:
The number 25 fits into 81 3 times, leaving a remainder of 6.
The next digit of our result is 3. 
Result so far: 33.0
Subtracting 75 from 81 leaves us with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 25

Let's proceed to step 4:
The number 25 fits into 61 2 times, leaving a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 332.0
Subtracting 50 from 61 leaves us with 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 25

Going ahead to step 5:
25 goes into 110 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 3324.0
Subtract 100 from 110 to get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 25

Advancing to step 6:
105 divided by 25 is 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 33244.0
Subtract 100 from 105 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
The number 25 fits into 50 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 33244.2
Subtracting 50 from 50 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.

Let's proceed to step 8:
0 divided by 25 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 33244.2
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.

Going ahead to step 9:
25 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 33244.2
Deduct 0 from 0 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.

The final outcome is 33244.2, with a leftover of 0.0.