We look at the division of 21211424 by 852 
Let's see how many times 852 fits into 21211424.

Going ahead to step 1:
852 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 852

Let's proceed to step 2:
852 can be fit into 21 0 times, resulting in 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 (2) of the dividend behind the 21 and repeat the process: 212 / 852

On to step 3:
212 divided by 852 is 0 with a remainder of 212.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Grab the next digit (1) from the dividend, add it to 212, then carry on: 2121 / 852

Moving on to step 4:
If we divide 2121 by 852, we get 2 and a remainder of 417.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 1704 away from 2121, we end up with 417.
Include the next digit (1) from the dividend after 417, then repeat: 4171 / 852

Step 5:
852 goes into 4171 4 times with a remainder of 763.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Deduct 3408 from 4171 and we're left with 763.
Append the next digit (4) from the dividend to 763 and continue with: 7634 / 852

Let's proceed to step 6:
When dividing 7634 by 852, we get 8 with a remainder of 818.
Put 8 as the next digit of the answer. 
Result so far: 248.0
Deduct 6816 from 7634 and we're left with 818.
Grab the next digit (2) from the dividend, add it to 818, then carry on: 8182 / 852

Let's proceed to step 7:
852 can be fit into 8182 9 times, resulting in a remainder of 514.
Put 9 as the next digit of the answer. 
Result so far: 2489.0
Subtract 7668 from 8182 to get 514.
Take the next digit (4) from the dividend and append it to 514, then repeat: 5144 / 852

Advancing to step 8:
When dividing 5144 by 852, we get 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 24896.0
Subtract 5112 from 5144 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
The number 852 fits into 320 0 times, leaving a remainder of 320.
Write down 0 as next digit of the result. 
Result so far: 24896.0
Deduct 0 from 320 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 10:
If we divide 3200 by 852, we get 3 and a remainder of 644.
Record the quotient 3 as the next digit in the result. 
Result so far: 24896.03
Subtracting 2556 from 3200 leaves us with 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Moving on to step 11:
6440 divided by 852 is 7 with a remainder of 476.
Write down 7 as next digit of the result. 
Result so far: 24896.037
Subtract 5964 from 6440 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Step 12:
The number 852 fits into 4760 5 times, leaving a remainder of 500.
The next digit of our result is 5. 
Result so far: 24896.0375
Deduct 4260 from 4760 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 13:
852 can be fit into 5000 5 times, resulting in a remainder of 740.
Use 5 as the next digit of our solution. 
Result so far: 24896.03755
Subtract 4260 from 5000 to get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

In conclusion, the division gives 24896.03755 with a balance of 0.00074.