921488 divided by 25 
The aim is to understand the frequency of 25 in 921488.

Advancing to step 1:
When dividing 9 by 25, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 25

On to step 2:
92 divided by 25 is 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 75 from 92 to get 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 25

On to step 3:
If we divide 171 by 25, we get 6 and a remainder of 21.
Put 6 as the next digit of the answer. 
Result so far: 36.0
Subtract 150 from 171 to get 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 25

Step 4:
If we divide 214 by 25, we get 8 and a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 368.0
If we take 200 away from 214, we end up with 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 25

Going ahead to step 5:
25 goes into 148 5 times with a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 3685.0
The remainder is 23 after subtracting 125 from 148.
Include the next digit (8) from the dividend after 23, then repeat: 238 / 25

Moving on to step 6:
If we divide 238 by 25, we get 9 and a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 36859.0
Subtract 225 from 238 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
The number 25 fits into 130 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 36859.5
Subtracting 125 from 130 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
25 can be fit into 50 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 36859.52
The remainder is 0 after subtracting 50 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 25 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36859.52
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 10:
0 divided by 25 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 36859.52
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 36859.52, with a leftover of 0.0.