We're dividing 20739 by 90 
We're looking to find how many times 90 goes into 20739.

Let's proceed to step 1:
90 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 90

Advancing to step 2:
20 divided by 90 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Fetch the next digit (7) from the dividend, attach it to 20 and continue: 207 / 90

Moving on to step 3:
90 goes into 207 2 times with a remainder of 27.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 180 away from 207, we end up with 27.
Fetch the next digit (3) from the dividend, attach it to 27 and continue: 273 / 90

On to step 4:
90 can be fit into 273 3 times, resulting in a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 23.0
The remainder is 3 after subtracting 270 from 273.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 90

On to step 5:
The number 90 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 230.0
Subtracting 0 from 39 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 6:
90 can be fit into 390 4 times, resulting in a remainder of 30.
The next digit of our result is 4. 
Result so far: 230.4
If we subtract 360 from 390, 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.

Going ahead to step 7:
90 can be fit into 300 3 times, resulting in a remainder of 30.
The next digit of our result is 3. 
Result so far: 230.43
If we subtract 270 from 300, 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.

Going ahead to step 8:
300 divided by 90 is 3 with a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 230.433
If we subtract 270 from 300, 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.

In conclusion, the division gives 230.433 with a balance of 0.003.