25321266 ÷ 455 
Our goal is to divide 25321266 by 455.

Step 1:
The number 455 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 455

Let's proceed to step 2:
The number 455 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Include the next digit (3) from the dividend after 25, then repeat: 253 / 455

On to step 3:
455 goes into 253 0 times with a remainder of 253.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 253 to get 253.
Append the next digit (2) from the dividend to 253 and continue with: 2532 / 455

On to step 4:
The number 455 fits into 2532 5 times, leaving a remainder of 257.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 2275 away from 2532, we end up with 257.
Include the next digit (1) from the dividend after 257, then repeat: 2571 / 455

Step 5:
The number 455 fits into 2571 5 times, leaving a remainder of 296.
Put 5 as the next digit of the answer. 
Result so far: 55.0
Deduct 2275 from 2571 and we're left with 296.
Fetch the next digit (2) from the dividend, attach it to 296 and continue: 2962 / 455

On to step 6:
455 goes into 2962 6 times with a remainder of 232.
Write down 6 as next digit of the result. 
Result so far: 556.0
Subtract 2730 from 2962 to get 232.
Fetch the next digit (6) from the dividend, attach it to 232 and continue: 2326 / 455

On to step 7:
455 goes into 2326 5 times with a remainder of 51.
Use 5 as the next digit of our solution. 
Result so far: 5565.0
Subtracting 2275 from 2326 leaves us with 51.
Bring next digit (6) of the dividend behind the 51 and repeat the process: 516 / 455

Step 8:
If we divide 516 by 455, we get 1 and a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 55651.0
Deduct 455 from 516 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 9:
The number 455 fits into 610 1 times, leaving a remainder of 155.
Write down 1 as next digit of the result. 
Result so far: 55651.1
If we subtract 455 from 610, we get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

On to step 10:
When dividing 1550 by 455, we get 3 with a remainder of 185.
Write down 3 as next digit of the result. 
Result so far: 55651.13
If we subtract 1365 from 1550, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 11:
The number 455 fits into 1850 4 times, leaving a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 55651.134
If we take 1820 away from 1850, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
455 goes into 300 0 times with a remainder of 300.
Put 0 as the next digit of the answer. 
Result so far: 55651.134
Subtracting 0 from 300 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 13:
When dividing 3000 by 455, we get 6 with a remainder of 270.
The next digit of our result is 6. 
Result so far: 55651.13406
If we subtract 2730 from 3000, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Going ahead to step 14:
When dividing 2700 by 455, we get 5 with a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 55651.134065
Subtract 2275 from 2700 to get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Step 15:
When dividing 4250 by 455, we get 9 with a remainder of 155.
The next digit of our result is 9. 
Result so far: 55651.1340659
Subtract 4095 from 4250 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Advancing to step 16:
The number 455 fits into 1550 3 times, leaving a remainder of 185.
Put 3 as the next digit of the answer. 
Result so far: 55651.13406593
Deduct 1365 from 1550 and we're left with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

The final outcome is 55651.13406593, with a leftover of 1.85e-07.