25548609 ÷ 20 
We want to divide 25548609 by 20.

Moving on to step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 20

On to step 2:
If we divide 25 by 20, we get 1 and a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 20 from 25 to get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 20

Let's proceed to step 3:
55 divided by 20 is 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 40 from 55 leaves us with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 20

Step 4:
20 goes into 154 7 times with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtract 140 from 154 to get 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 20

Advancing to step 5:
When dividing 148 by 20, we get 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 1277.0
If we subtract 140 from 148, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 20

Going ahead to step 6:
If we divide 86 by 20, we get 4 and a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 12774.0
The remainder is 6 after subtracting 80 from 86.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 20

On to step 7:
20 can be fit into 60 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 127743.0
If we subtract 60 from 60, we get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 20

Moving on to step 8:
20 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 1277430.0
Deduct 0 from 9 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
20 can be fit into 90 4 times, resulting in a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 1277430.4
If we subtract 80 from 90, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1277430.45
Deduct 100 from 100 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.

Advancing to step 11:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1277430.45
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.

Moving on to step 12:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1277430.45
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 1277430.45, and the remainder is 0.0.