We look at the division of 21115109 by 726 
Our goal is to divide 21115109 by 726.

Advancing to step 1:
The number 726 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 726

Step 2:
21 divided by 726 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Bring next digit (1) of the dividend behind the 21 and repeat the process: 211 / 726

Let's proceed to step 3:
726 can be fit into 211 0 times, resulting in a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 211 to get 211.
Fetch the next digit (1) from the dividend, attach it to 211 and continue: 2111 / 726

Step 4:
If we divide 2111 by 726, we get 2 and a remainder of 659.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 659 after subtracting 1452 from 2111.
Take the next digit (5) from the dividend and append it to 659, then repeat: 6595 / 726

Moving on to step 5:
The number 726 fits into 6595 9 times, leaving a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 29.0
If we subtract 6534 from 6595, we get 61.
Bring next digit (1) of the dividend behind the 61 and repeat the process: 611 / 726

Let's proceed to step 6:
If we divide 611 by 726, we get 0 and a remainder of 611.
Put 0 as the next digit of the answer. 
Result so far: 290.0
Subtracting 0 from 611 leaves us with 611.
Grab the next digit (0) from the dividend, add it to 611, then carry on: 6110 / 726

Step 7:
If we divide 6110 by 726, we get 8 and a remainder of 302.
Record the quotient 8 as the next digit in the result. 
Result so far: 2908.0
Subtract 5808 from 6110 to get 302.
Bring next digit (9) of the dividend behind the 302 and repeat the process: 3029 / 726

Advancing to step 8:
3029 divided by 726 is 4 with a remainder of 125.
The number 4 becomes the next digit in our result. 
Result so far: 29084.0
If we take 2904 away from 3029, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 9:
726 goes into 1250 1 times with a remainder of 524.
The number 1 becomes the next digit in our result. 
Result so far: 29084.1
If we subtract 726 from 1250, we get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Step 10:
When dividing 5240 by 726, we get 7 with a remainder of 158.
Put 7 as the next digit of the answer. 
Result so far: 29084.17
If we subtract 5082 from 5240, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 11:
If we divide 1580 by 726, we get 2 and a remainder of 128.
Use 2 as the next digit of our solution. 
Result so far: 29084.172
If we take 1452 away from 1580, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 12:
If we divide 1280 by 726, we get 1 and a remainder of 554.
Record the quotient 1 as the next digit in the result. 
Result so far: 29084.1721
Subtract 726 from 1280 to get 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

On to step 13:
When dividing 5540 by 726, we get 7 with a remainder of 458.
The next digit of our result is 7. 
Result so far: 29084.17217
If we subtract 5082 from 5540, we get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Step 14:
726 can be fit into 4580 6 times, resulting in a remainder of 224.
Put 6 as the next digit of the answer. 
Result so far: 29084.172176
Subtract 4356 from 4580 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 15:
726 goes into 2240 3 times with a remainder of 62.
Put 3 as the next digit of the answer. 
Result so far: 29084.1721763
Deduct 2178 from 2240 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 16:
The number 726 fits into 620 0 times, leaving a remainder of 620.
Put 0 as the next digit of the answer. 
Result so far: 29084.1721763
The remainder is 620 after subtracting 0 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

In conclusion, the division gives 29084.1721763 with a balance of 6.2e-07.