Let's divide 840520 by 25
We're looking to find how many times 25 goes into 840520.

On to step 1:
25 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 25

Going ahead to step 2:
The number 25 fits into 84 3 times, leaving a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 75 from 84 to get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 25

Let's proceed to step 3:
25 can be fit into 90 3 times, resulting in a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 33.0
Deduct 75 from 90 and we're left with 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 25

Moving on to step 4:
If we divide 155 by 25, we get 6 and a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 336.0
Subtract 150 from 155 to get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 25

Going ahead to step 5:
25 can be fit into 52 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 3362.0
Subtract 50 from 52 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 25

Going ahead to step 6:
20 divided by 25 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 33620.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
25 goes into 200 8 times with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 33620.8
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.

Moving on to step 8:
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: 33620.8
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.

Let's proceed to step 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 33620.8
If we take 0 away from 0, 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.

The final result is 33620.8 with a remainder of 0.0.