807873 ÷ 81 
Let's see how many times 81 fits into 807873.

Step 1:
When dividing 8 by 81, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 81

On to step 2:
If we divide 80 by 81, we get 0 and a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Append the next digit (7) from the dividend to 80 and continue with: 807 / 81

Step 3:
When dividing 807 by 81, we get 9 with a remainder of 78.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 78 after subtracting 729 from 807.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 81

Let's proceed to step 4:
The number 81 fits into 788 9 times, leaving a remainder of 59.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
Deduct 729 from 788 and we're left with 59.
Grab the next digit (7) from the dividend, add it to 59, then carry on: 597 / 81

Going ahead to step 5:
81 goes into 597 7 times with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 997.0
If we take 567 away from 597, we end up with 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 81

Advancing to step 6:
When dividing 303 by 81, we get 3 with a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 9973.0
Subtract 243 from 303 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 7:
If we divide 600 by 81, we get 7 and a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 9973.7
The remainder is 33 after subtracting 567 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 8:
81 goes into 330 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 9973.74
The remainder is 6 after subtracting 324 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
When dividing 60 by 81, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 9973.74
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
81 can be fit into 600 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 9973.7407
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 11:
The number 81 fits into 330 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 9973.74074
Subtract 324 from 330 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
If we divide 60 by 81, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 9973.74074
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 13:
600 divided by 81 is 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 9973.7407407
If we take 567 away from 600, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 14:
When dividing 330 by 81, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 9973.74074074
If we subtract 324 from 330, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 9973.74074074, with a leftover of 6e-09.