We're dividing 855393 by 25 
We're looking to find how many times 25 goes into 855393.

Advancing to step 1:
When dividing 8 by 25, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
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

Let's proceed to step 2:
25 goes into 85 3 times with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 75 from 85 and we're left with 10.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 25

Let's proceed to step 3:
The number 25 fits into 105 4 times, leaving a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 100 from 105, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 25

Step 4:
The number 25 fits into 53 2 times, leaving a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 342.0
Subtracting 50 from 53 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 25

On to step 5:
25 goes into 39 1 times with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 3421.0
Subtracting 25 from 39 leaves us with 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 25

Let's proceed to step 6:
25 can be fit into 143 5 times, resulting in a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 34215.0
Subtracting 125 from 143 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 7:
When dividing 180 by 25, we get 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 34215.7
Subtracting 175 from 180 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.

Advancing to step 8:
50 divided by 25 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 34215.72
Deduct 50 from 50 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.

Step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 34215.72
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.

Let's proceed to step 10:
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: 34215.72
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 34215.72 with a remaining 0.0.