7866382 divided by 809 
Our goal is to divide 7866382 by 809.

Step 1:
If we divide 7 by 809, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 809

On to step 2:
78 divided by 809 is 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Take the next digit (6) from the dividend and append it to 78, then repeat: 786 / 809

Advancing to step 3:
When dividing 786 by 809, we get 0 with a remainder of 786.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 786 to get 786.
Append the next digit (6) from the dividend to 786 and continue with: 7866 / 809

Step 4:
If we divide 7866 by 809, we get 9 and a remainder of 585.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 585 after subtracting 7281 from 7866.
Fetch the next digit (3) from the dividend, attach it to 585 and continue: 5853 / 809

Step 5:
809 can be fit into 5853 7 times, resulting in a remainder of 190.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
If we subtract 5663 from 5853, we get 190.
Grab the next digit (8) from the dividend, add it to 190, then carry on: 1908 / 809

Moving on to step 6:
The number 809 fits into 1908 2 times, leaving a remainder of 290.
Use 2 as the next digit of our solution. 
Result so far: 972.0
Subtract 1618 from 1908 to get 290.
Fetch the next digit (2) from the dividend, attach it to 290 and continue: 2902 / 809

On to step 7:
If we divide 2902 by 809, we get 3 and a remainder of 475.
Put 3 as the next digit of the answer. 
Result so far: 9723.0
The remainder is 475 after subtracting 2427 from 2902.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 8:
809 can be fit into 4750 5 times, resulting in a remainder of 705.
Write down 5 as next digit of the result. 
Result so far: 9723.5
If we subtract 4045 from 4750, we get 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Advancing to step 9:
7050 divided by 809 is 8 with a remainder of 578.
Record the quotient 8 as the next digit in the result. 
Result so far: 9723.58
Subtracting 6472 from 7050 leaves us with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Advancing to step 10:
809 goes into 5780 7 times with a remainder of 117.
Record the quotient 7 as the next digit in the result. 
Result so far: 9723.587
If we subtract 5663 from 5780, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Step 11:
If we divide 1170 by 809, we get 1 and a remainder of 361.
Put 1 as the next digit of the answer. 
Result so far: 9723.5871
Subtracting 809 from 1170 leaves us with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Moving on to step 12:
If we divide 3610 by 809, we get 4 and a remainder of 374.
Write down 4 as next digit of the result. 
Result so far: 9723.58714
If we subtract 3236 from 3610, we get 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Going ahead to step 13:
809 can be fit into 3740 4 times, resulting in a remainder of 504.
Record the quotient 4 as the next digit in the result. 
Result so far: 9723.587144
Deduct 3236 from 3740 and we're left with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

The final outcome is 9723.587144, with a leftover of 5.04e-05.