We're dividing 852879 by 25 
The aim is to understand the frequency of 25 in 852879.

Advancing to step 1:
When dividing 8 by 25, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 25

Step 2:
85 divided by 25 is 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 10 after subtracting 75 from 85.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 25

Step 3:
25 can be fit into 102 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 34.0
If we subtract 100 from 102, we get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 25

Advancing to step 4:
When dividing 28 by 25, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 341.0
Subtracting 25 from 28 leaves us with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 25

On to step 5:
If we divide 37 by 25, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 3411.0
Deduct 25 from 37 and we're left with 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 25

Going ahead to step 6:
The number 25 fits into 129 5 times, leaving a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 34115.0
The remainder is 4 after subtracting 125 from 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
25 goes into 40 1 times with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 34115.1
Subtract 25 from 40 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
25 can be fit into 150 6 times, resulting in a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 34115.16
If we take 150 away from 150, 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 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 34115.16
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.

Advancing to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 34115.16
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.

Our division results in 34115.16 with a remaining 0.0.