We divide 12443 by 81
We want to figure out the number of times 12443 can be divided by 81.

Advancing 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
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 81

Step 2:
If we divide 12 by 81, we get 0 and a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 81

Moving on to step 3:
81 goes into 124 1 times with a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 81 from 124 to get 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 81

Advancing to step 4:
81 goes into 434 5 times with a remainder of 29.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 405 away from 434, we end up with 29.
Bring next digit (3) of the dividend behind the 29 and repeat the process: 293 / 81

Step 5:
81 can be fit into 293 3 times, resulting in a remainder of 50.
Record the quotient 3 as the next digit in the result. 
Result so far: 153.0
Subtract 243 from 293 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 6:
81 can be fit into 500 6 times, resulting in a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 153.6
If we take 486 away from 500, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
140 divided by 81 is 1 with a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 153.61
If we subtract 81 from 140, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 8:
If we divide 590 by 81, we get 7 and a remainder of 23.
The next digit of our result is 7. 
Result so far: 153.617
The remainder is 23 after subtracting 567 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 9:
When dividing 230 by 81, we get 2 with a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 153.6172
Deduct 162 from 230 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 10:
680 divided by 81 is 8 with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 153.61728
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 11:
81 can be fit into 320 3 times, resulting in a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 153.617283
If we subtract 243 from 320, we get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 12:
The number 81 fits into 770 9 times, leaving a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 153.6172839
Subtract 729 from 770 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 13:
81 can be fit into 410 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 153.61728395
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 153.61728395 with a remainder of 5e-09.