We divide 726234 by 21
Let's see how many times 21 fits into 726234.

Step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 21

Advancing to step 2:
21 can be fit into 72 3 times, resulting in a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 63 from 72, we get 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 21

Let's proceed to step 3:
21 can be fit into 96 4 times, resulting in a remainder of 12.
The next digit of our result is 4. 
Result so far: 34.0
If we take 84 away from 96, we end up with 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 21

Going ahead to step 4:
When dividing 122 by 21, we get 5 with a remainder of 17.
Use 5 as the next digit of our solution. 
Result so far: 345.0
Deduct 105 from 122 and we're left with 17.
Take the next digit (3) from the dividend and append it to 17, then repeat: 173 / 21

Step 5:
21 can be fit into 173 8 times, resulting in a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 3458.0
The remainder is 5 after subtracting 168 from 173.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 21

Moving on to step 6:
If we divide 54 by 21, we get 2 and a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 34582.0
If we subtract 42 from 54, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 34582.5
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
If we divide 150 by 21, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 34582.57
The remainder is 3 after subtracting 147 from 150.
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 9:
The number 21 fits into 30 1 times, leaving a remainder of 9.
The next digit of our result is 1. 
Result so far: 34582.571
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 34582.5714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 34582.57142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 12:
21 goes into 180 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 34582.571428
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
When dividing 120 by 21, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 34582.5714285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 14:
The number 21 fits into 150 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 34582.57142857
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 34582.57142857 with a remainder of 3e-09.