17765713 ÷ 809 
We want to divide 17765713 by 809.

Moving on to step 1:
The number 809 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 809

Moving on to step 2:
If we divide 17 by 809, we get 0 and a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Take the next digit (7) from the dividend and append it to 17, then repeat: 177 / 809

On to step 3:
809 goes into 177 0 times with a remainder of 177.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 177 and we're left with 177.
Include the next digit (6) from the dividend after 177, then repeat: 1776 / 809

On to step 4:
809 can be fit into 1776 2 times, resulting in a remainder of 158.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 1618 from 1776 leaves us with 158.
Bring next digit (5) of the dividend behind the 158 and repeat the process: 1585 / 809

Advancing to step 5:
If we divide 1585 by 809, we get 1 and a remainder of 776.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtracting 809 from 1585 leaves us with 776.
Bring next digit (7) of the dividend behind the 776 and repeat the process: 7767 / 809

On to step 6:
809 goes into 7767 9 times with a remainder of 486.
Use 9 as the next digit of our solution. 
Result so far: 219.0
If we subtract 7281 from 7767, we get 486.
Grab the next digit (1) from the dividend, add it to 486, then carry on: 4861 / 809

Going ahead to step 7:
4861 divided by 809 is 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 2196.0
Deduct 4854 from 4861 and we're left with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 809

Moving on to step 8:
809 goes into 73 0 times with a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 21960.0
If we take 0 away from 73, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 9:
730 divided by 809 is 0 with a remainder of 730.
Record the quotient 0 as the next digit in the result. 
Result so far: 21960.0
If we subtract 0 from 730, we get 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Going ahead to step 10:
When dividing 7300 by 809, we get 9 with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 21960.09
If we subtract 7281 from 7300, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 11:
190 divided by 809 is 0 with a remainder of 190.
Record the quotient 0 as the next digit in the result. 
Result so far: 21960.09
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 12:
If we divide 1900 by 809, we get 2 and a remainder of 282.
The next digit of our result is 2. 
Result so far: 21960.0902
The remainder is 282 after subtracting 1618 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Let's proceed to step 13:
The number 809 fits into 2820 3 times, leaving a remainder of 393.
Write down 3 as next digit of the result. 
Result so far: 21960.09023
Subtracting 2427 from 2820 leaves us with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Advancing to step 14:
809 can be fit into 3930 4 times, resulting in a remainder of 694.
Put 4 as the next digit of the answer. 
Result so far: 21960.090234
The remainder is 694 after subtracting 3236 from 3930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

Step 15:
When dividing 6940 by 809, we get 8 with a remainder of 468.
Use 8 as the next digit of our solution. 
Result so far: 21960.0902348
If we subtract 6472 from 6940, we get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Step 16:
When dividing 4680 by 809, we get 5 with a remainder of 635.
The next digit of our result is 5. 
Result so far: 21960.09023485
Subtracting 4045 from 4680 leaves us with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

After the division, we end up with 21960.09023485 and a remainder of 6.35e-07.