13427 ÷ 81 
Let's see how many times 81 fits into 13427.

Let's proceed to step 1:
When dividing 1 by 81, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 81

Let's proceed to step 2:
13 divided by 81 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 81

On to step 3:
81 goes into 134 1 times with a remainder of 53.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 81 from 134 leaves us with 53.
Take the next digit (2) from the dividend and append it to 53, then repeat: 532 / 81

Advancing to step 4:
The number 81 fits into 532 6 times, leaving a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Deduct 486 from 532 and we're left with 46.
Take the next digit (7) from the dividend and append it to 46, then repeat: 467 / 81

Step 5:
81 goes into 467 5 times with a remainder of 62.
Record the quotient 5 as the next digit in the result. 
Result so far: 165.0
The remainder is 62 after subtracting 405 from 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 6:
The number 81 fits into 620 7 times, leaving a remainder of 53.
The next digit of our result is 7. 
Result so far: 165.7
Subtract 567 from 620 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 7:
The number 81 fits into 530 6 times, leaving a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 165.76
If we take 486 away from 530, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
When dividing 440 by 81, we get 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 165.765
Subtract 405 from 440 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 9:
81 goes into 350 4 times with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 165.7654
If we subtract 324 from 350, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 10:
When dividing 260 by 81, we get 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 165.76543
Deduct 243 from 260 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
81 goes into 170 2 times with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 165.765432
If we take 162 away from 170, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
80 divided by 81 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 165.765432
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
81 can be fit into 800 9 times, resulting in a remainder of 71.
Write down 9 as next digit of the result. 
Result so far: 165.76543209
Deduct 729 from 800 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final result is 165.76543209 with a remainder of 7.1e-08.