20509533 ÷ 814 
Our goal is to divide 20509533 by 814.

Step 1:
When dividing 2 by 814, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 814

Advancing to step 2:
The number 814 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 814

Moving on to step 3:
The number 814 fits into 205 0 times, leaving a remainder of 205.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 205, we end up with 205.
Grab the next digit (0) from the dividend, add it to 205, then carry on: 2050 / 814

Step 4:
The number 814 fits into 2050 2 times, leaving a remainder of 422.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 1628 from 2050, we get 422.
Take the next digit (9) from the dividend and append it to 422, then repeat: 4229 / 814

On to step 5:
The number 814 fits into 4229 5 times, leaving a remainder of 159.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtract 4070 from 4229 to get 159.
Append the next digit (5) from the dividend to 159 and continue with: 1595 / 814

Going ahead to step 6:
When dividing 1595 by 814, we get 1 with a remainder of 781.
Record the quotient 1 as the next digit in the result. 
Result so far: 251.0
Subtract 814 from 1595 to get 781.
Grab the next digit (3) from the dividend, add it to 781, then carry on: 7813 / 814

Going ahead to step 7:
7813 divided by 814 is 9 with a remainder of 487.
Put 9 as the next digit of the answer. 
Result so far: 2519.0
If we subtract 7326 from 7813, we get 487.
Take the next digit (3) from the dividend and append it to 487, then repeat: 4873 / 814

Advancing to step 8:
If we divide 4873 by 814, we get 5 and a remainder of 803.
Write down 5 as next digit of the result. 
Result so far: 25195.0
If we subtract 4070 from 4873, we get 803.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

On to step 9:
814 can be fit into 8030 9 times, resulting in a remainder of 704.
The number 9 becomes the next digit in our result. 
Result so far: 25195.9
If we take 7326 away from 8030, we end up with 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Moving on to step 10:
The number 814 fits into 7040 8 times, leaving a remainder of 528.
The number 8 becomes the next digit in our result. 
Result so far: 25195.98
If we subtract 6512 from 7040, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Let's proceed to step 11:
814 goes into 5280 6 times with a remainder of 396.
Use 6 as the next digit of our solution. 
Result so far: 25195.986
Subtract 4884 from 5280 to get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

On to step 12:
If we divide 3960 by 814, we get 4 and a remainder of 704.
The next digit of our result is 4. 
Result so far: 25195.9864
Subtract 3256 from 3960 to get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

On to step 13:
814 goes into 7040 8 times with a remainder of 528.
Write down 8 as next digit of the result. 
Result so far: 25195.98648
If we take 6512 away from 7040, we end up with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 14:
814 goes into 5280 6 times with a remainder of 396.
Write down 6 as next digit of the result. 
Result so far: 25195.986486
Subtract 4884 from 5280 to get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Advancing to step 15:
814 goes into 3960 4 times with a remainder of 704.
The number 4 becomes the next digit in our result. 
Result so far: 25195.9864864
If we subtract 3256 from 3960, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Step 16:
If we divide 7040 by 814, we get 8 and a remainder of 528.
Put 8 as the next digit of the answer. 
Result so far: 25195.98648648
Subtracting 6512 from 7040 leaves us with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

The final outcome is 25195.98648648, with a leftover of 5.28e-07.