21331 ÷ 89 
Let's see how many times 89 fits into 21331.

Advancing to step 1:
89 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 89

Step 2:
21 divided by 89 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 89

Going ahead to step 3:
When dividing 213 by 89, we get 2 with a remainder of 35.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 35 after subtracting 178 from 213.
Include the next digit (3) from the dividend after 35, then repeat: 353 / 89

Step 4:
353 divided by 89 is 3 with a remainder of 86.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
The remainder is 86 after subtracting 267 from 353.
Grab the next digit (1) from the dividend, add it to 86, then carry on: 861 / 89

Moving on to step 5:
The number 89 fits into 861 9 times, leaving a remainder of 60.
Use 9 as the next digit of our solution. 
Result so far: 239.0
Subtract 801 from 861 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.

Let's proceed to step 6:
If we divide 600 by 89, we get 6 and a remainder of 66.
Use 6 as the next digit of our solution. 
Result so far: 239.6
The remainder is 66 after subtracting 534 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 7:
If we divide 660 by 89, we get 7 and a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 239.67
Subtract 623 from 660 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 8:
89 can be fit into 370 4 times, resulting in a remainder of 14.
The next digit of our result is 4. 
Result so far: 239.674
If we subtract 356 from 370, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 9:
If we divide 140 by 89, we get 1 and a remainder of 51.
Record the quotient 1 as the next digit in the result. 
Result so far: 239.6741
Deduct 89 from 140 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 10:
When dividing 510 by 89, we get 5 with a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 239.67415
If we subtract 445 from 510, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 11:
89 goes into 650 7 times with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 239.674157
If we take 623 away from 650, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 12:
The number 89 fits into 270 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 239.6741573
If we subtract 267 from 270, we get 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:
The number 89 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 239.6741573
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.

The final result is 239.6741573 with a remainder of 3e-08.