122303 divided by 81 
We want to divide 122303 by 81.

On to step 1:
The number 81 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 81

Going ahead to step 2:
If we divide 12 by 81, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 81

Moving on to step 3:
81 goes into 122 1 times with a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 81 from 122 leaves us with 41.
Include the next digit (3) from the dividend after 41, then repeat: 413 / 81

On to step 4:
81 can be fit into 413 5 times, resulting in a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 405 away from 413, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 81

On to step 5:
If we divide 80 by 81, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
Subtracting 0 from 80 leaves us with 80.
Include the next digit (3) from the dividend after 80, then repeat: 803 / 81

Advancing to step 6:
If we divide 803 by 81, we get 9 and a remainder of 74.
Write down 9 as next digit of the result. 
Result so far: 1509.0
If we take 729 away from 803, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 7:
81 goes into 740 9 times with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 1509.9
Subtract 729 from 740 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 8:
The number 81 fits into 110 1 times, leaving a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 1509.91
Subtract 81 from 110 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 9:
If we divide 290 by 81, we get 3 and a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 1509.913
If we take 243 away from 290, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 10:
If we divide 470 by 81, we get 5 and a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 1509.9135
Deduct 405 from 470 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 11:
If we divide 650 by 81, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 1509.91358
Deduct 648 from 650 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
20 divided by 81 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1509.91358
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
81 can be fit into 200 2 times, resulting in a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 1509.9135802
Subtract 162 from 200 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 14:
The number 81 fits into 380 4 times, leaving a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 1509.91358024
If we take 324 away from 380, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 1509.91358024, with a leftover of 5.6e-08.