809841 divided by 81 
We're looking to find how many times 81 goes into 809841.

Step 1:
81 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 81

Step 2:
80 divided by 81 is 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Grab the next digit (9) from the dividend, add it to 80, then carry on: 809 / 81

Going ahead to step 3:
81 goes into 809 9 times with a remainder of 80.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 729 from 809, we get 80.
Include the next digit (8) from the dividend after 80, then repeat: 808 / 81

On to step 4:
The number 81 fits into 808 9 times, leaving a remainder of 79.
Put 9 as the next digit of the answer. 
Result so far: 99.0
Subtract 729 from 808 to get 79.
Fetch the next digit (4) from the dividend, attach it to 79 and continue: 794 / 81

Let's proceed to step 5:
81 goes into 794 9 times with a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 999.0
Subtract 729 from 794 to get 65.
Fetch the next digit (1) from the dividend, attach it to 65 and continue: 651 / 81

Moving on to step 6:
651 divided by 81 is 8 with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 9998.0
If we take 648 away from 651, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
30 divided by 81 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 9998.0
Subtracting 0 from 30 leaves us 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 8:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 9998.03
Subtracting 243 from 300 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 9:
570 divided by 81 is 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 9998.037
If we take 567 away from 570, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 10:
When dividing 30 by 81, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 9998.037
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
If we divide 300 by 81, we get 3 and a remainder of 57.
The next digit of our result is 3. 
Result so far: 9998.03703
Deduct 243 from 300 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 12:
81 goes into 570 7 times with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 9998.037037
Deduct 567 from 570 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
If we divide 30 by 81, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 9998.037037
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 9998.03703703
The remainder is 57 after subtracting 243 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 9998.03703703, with a leftover of 5.7e-08.