15809505 ÷ 814 
Our goal is to divide 15809505 by 814.

Step 1:
814 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 814

Let's proceed to step 2:
If we divide 15 by 814, we get 0 and a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 814

On to step 3:
814 can be fit into 158 0 times, resulting in a remainder of 158.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 158 leaves us with 158.
Take the next digit (0) from the dividend and append it to 158, then repeat: 1580 / 814

Moving on to step 4:
If we divide 1580 by 814, we get 1 and a remainder of 766.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 814 from 1580 leaves us with 766.
Include the next digit (9) from the dividend after 766, then repeat: 7669 / 814

Going ahead to step 5:
7669 divided by 814 is 9 with a remainder of 343.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 7326 from 7669, we get 343.
Append the next digit (5) from the dividend to 343 and continue with: 3435 / 814

Step 6:
If we divide 3435 by 814, we get 4 and a remainder of 179.
The number 4 becomes the next digit in our result. 
Result so far: 194.0
If we take 3256 away from 3435, we end up with 179.
Bring next digit (0) of the dividend behind the 179 and repeat the process: 1790 / 814

Advancing to step 7:
1790 divided by 814 is 2 with a remainder of 162.
The next digit of our result is 2. 
Result so far: 1942.0
Subtract 1628 from 1790 to get 162.
Include the next digit (5) from the dividend after 162, then repeat: 1625 / 814

Advancing to step 8:
814 goes into 1625 1 times with a remainder of 811.
Record the quotient 1 as the next digit in the result. 
Result so far: 19421.0
The remainder is 811 after subtracting 814 from 1625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8110, and continue the process.

On to step 9:
The number 814 fits into 8110 9 times, leaving a remainder of 784.
The next digit of our result is 9. 
Result so far: 19421.9
The remainder is 784 after subtracting 7326 from 8110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Moving on to step 10:
814 goes into 7840 9 times with a remainder of 514.
Use 9 as the next digit of our solution. 
Result so far: 19421.99
Subtracting 7326 from 7840 leaves us with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

The final result is 19421.99 with a remainder of 0.514.