508990 ÷ 25 
Our goal is to divide 508990 by 25.

Going ahead to step 1:
25 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 25

Advancing to step 2:
25 can be fit into 50 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 50 from 50 leaves us with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 25

Going ahead to step 3:
If we divide 8 by 25, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 25

Let's proceed to step 4:
25 goes into 89 3 times with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 203.0
Subtracting 75 from 89 leaves us with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 25

Step 5:
If we divide 149 by 25, we get 5 and a remainder of 24.
Put 5 as the next digit of the answer. 
Result so far: 2035.0
Subtract 125 from 149 to get 24.
Fetch the next digit (0) from the dividend, attach it to 24 and continue: 240 / 25

Going ahead to step 6:
25 can be fit into 240 9 times, resulting in a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 20359.0
If we subtract 225 from 240, we 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.

Going ahead to step 7:
When dividing 150 by 25, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 20359.6
Subtract 150 from 150 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.

Going ahead to step 8:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20359.6
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.

Step 9:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 20359.6
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 quotient of the division is 20359.6, and the remainder is 0.0.