We divide 883390 by 25
The aim is to understand the frequency of 25 in 883390.

Going ahead to step 1:
8 divided by 25 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 25

Going ahead to step 2:
When dividing 88 by 25, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 75 from 88, we get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 25

Step 3:
If we divide 133 by 25, we get 5 and a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Subtracting 125 from 133 leaves us with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 25

Moving on to step 4:
25 goes into 83 3 times with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 353.0
If we take 75 away from 83, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 25

Moving on to step 5:
25 can be fit into 89 3 times, resulting in a remainder of 14.
The next digit of our result is 3. 
Result so far: 3533.0
Subtracting 75 from 89 leaves us with 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 25

On to step 6:
If we divide 140 by 25, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 35335.0
The remainder is 15 after subtracting 125 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
The number 25 fits into 150 6 times, leaving a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 35335.6
If we subtract 150 from 150, we 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.

Let's proceed to step 8:
25 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 35335.6
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 9:
If we divide 0 by 25, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 35335.6
Subtracting 0 from 0 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.

After the division, we end up with 35335.6 and a remainder of 0.0.