We divide 21285436 by 724
We want to divide 21285436 by 724.

Step 1:
724 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 724

On to step 2:
724 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 724

On to step 3:
When dividing 212 by 724, we get 0 with a remainder of 212.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Take the next digit (8) from the dividend and append it to 212, then repeat: 2128 / 724

Moving on to step 4:
When dividing 2128 by 724, we get 2 with a remainder of 680.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 1448 from 2128 to get 680.
Grab the next digit (5) from the dividend, add it to 680, then carry on: 6805 / 724

Advancing to step 5:
724 goes into 6805 9 times with a remainder of 289.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we subtract 6516 from 6805, we get 289.
Append the next digit (4) from the dividend to 289 and continue with: 2894 / 724

Let's proceed to step 6:
724 goes into 2894 3 times with a remainder of 722.
The next digit of our result is 3. 
Result so far: 293.0
Deduct 2172 from 2894 and we're left with 722.
Take the next digit (3) from the dividend and append it to 722, then repeat: 7223 / 724

Step 7:
When dividing 7223 by 724, we get 9 with a remainder of 707.
The next digit of our result is 9. 
Result so far: 2939.0
If we subtract 6516 from 7223, we get 707.
Take the next digit (6) from the dividend and append it to 707, then repeat: 7076 / 724

Moving on to step 8:
724 can be fit into 7076 9 times, resulting in a remainder of 560.
The next digit of our result is 9. 
Result so far: 29399.0
If we take 6516 away from 7076, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 9:
5600 divided by 724 is 7 with a remainder of 532.
Write down 7 as next digit of the result. 
Result so far: 29399.7
Deduct 5068 from 5600 and we're left with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 10:
724 goes into 5320 7 times with a remainder of 252.
The next digit of our result is 7. 
Result so far: 29399.77
If we subtract 5068 from 5320, we get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

In conclusion, the division gives 29399.77 with a balance of 0.252.