1985757 ÷ 25 
The aim is to understand the frequency of 25 in 1985757.

On to step 1:
The number 25 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 25

Advancing to step 2:
If we divide 19 by 25, we get 0 and a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 25

Going ahead to step 3:
25 goes into 198 7 times with a remainder of 23.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 175 from 198 leaves us with 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 25

Step 4:
25 can be fit into 235 9 times, resulting in a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
If we take 225 away from 235, we end up with 10.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 25

Going ahead to step 5:
25 can be fit into 107 4 times, resulting in a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 794.0
Deduct 100 from 107 and we're left with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 25

Let's proceed to step 6:
25 goes into 75 3 times with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 7943.0
If we subtract 75 from 75, we get 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 25

Step 7:
If we divide 7 by 25, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 79430.0
If we subtract 0 from 7, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 8:
The number 25 fits into 70 2 times, leaving a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 79430.2
If we take 50 away from 70, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
The number 25 fits into 200 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 79430.28
If we take 200 away from 200, 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.

Advancing to step 10:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 79430.28
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.

Going ahead to step 11:
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: 79430.28
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 79430.28 with a remaining 0.0.