20811739 divided by 729 
Let's see how many times 729 fits into 20811739.

Going ahead to step 1:
If we divide 2 by 729, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 729

Advancing to step 2:
When dividing 20 by 729, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Append the next digit (8) from the dividend to 20 and continue with: 208 / 729

Advancing to step 3:
729 goes into 208 0 times with a remainder of 208.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 208 to get 208.
Take the next digit (1) from the dividend and append it to 208, then repeat: 2081 / 729

On to step 4:
If we divide 2081 by 729, we get 2 and a remainder of 623.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 623 after subtracting 1458 from 2081.
Bring next digit (1) of the dividend behind the 623 and repeat the process: 6231 / 729

Advancing to step 5:
When dividing 6231 by 729, we get 8 with a remainder of 399.
The next digit of our result is 8. 
Result so far: 28.0
If we take 5832 away from 6231, we end up with 399.
Fetch the next digit (7) from the dividend, attach it to 399 and continue: 3997 / 729

Advancing to step 6:
The number 729 fits into 3997 5 times, leaving a remainder of 352.
The number 5 becomes the next digit in our result. 
Result so far: 285.0
Deduct 3645 from 3997 and we're left with 352.
Append the next digit (3) from the dividend to 352 and continue with: 3523 / 729

On to step 7:
729 goes into 3523 4 times with a remainder of 607.
The number 4 becomes the next digit in our result. 
Result so far: 2854.0
If we subtract 2916 from 3523, we get 607.
Grab the next digit (9) from the dividend, add it to 607, then carry on: 6079 / 729

Step 8:
If we divide 6079 by 729, we get 8 and a remainder of 247.
Put 8 as the next digit of the answer. 
Result so far: 28548.0
Deduct 5832 from 6079 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Advancing to step 9:
The number 729 fits into 2470 3 times, leaving a remainder of 283.
Use 3 as the next digit of our solution. 
Result so far: 28548.3
If we subtract 2187 from 2470, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

On to step 10:
When dividing 2830 by 729, we get 3 with a remainder of 643.
Put 3 as the next digit of the answer. 
Result so far: 28548.33
Subtract 2187 from 2830 to get 643.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

Our division results in 28548.33 with a remaining 0.643.