We look at the division of 21064652 by 852 
Our goal is to divide 21064652 by 852.

Going ahead to step 1:
When dividing 2 by 852, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 852

On to step 2:
852 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 852

Moving on to step 3:
If we divide 210 by 852, we get 0 and a remainder of 210.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 210, we end up with 210.
Fetch the next digit (6) from the dividend, attach it to 210 and continue: 2106 / 852

Moving on to step 4:
If we divide 2106 by 852, we get 2 and a remainder of 402.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1704 from 2106 leaves us with 402.
Include the next digit (4) from the dividend after 402, then repeat: 4024 / 852

Going ahead to step 5:
852 can be fit into 4024 4 times, resulting in a remainder of 616.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtracting 3408 from 4024 leaves us with 616.
Grab the next digit (6) from the dividend, add it to 616, then carry on: 6166 / 852

Advancing to step 6:
852 goes into 6166 7 times with a remainder of 202.
The next digit of our result is 7. 
Result so far: 247.0
The remainder is 202 after subtracting 5964 from 6166.
Append the next digit (5) from the dividend to 202 and continue with: 2025 / 852

Going ahead to step 7:
852 can be fit into 2025 2 times, resulting in a remainder of 321.
Put 2 as the next digit of the answer. 
Result so far: 2472.0
The remainder is 321 after subtracting 1704 from 2025.
Bring next digit (2) of the dividend behind the 321 and repeat the process: 3212 / 852

Moving on to step 8:
If we divide 3212 by 852, we get 3 and a remainder of 656.
Use 3 as the next digit of our solution. 
Result so far: 24723.0
The remainder is 656 after subtracting 2556 from 3212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Moving on to step 9:
The number 852 fits into 6560 7 times, leaving a remainder of 596.
The number 7 becomes the next digit in our result. 
Result so far: 24723.7
Subtracting 5964 from 6560 leaves us with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Let's proceed to step 10:
5960 divided by 852 is 6 with a remainder of 848.
Put 6 as the next digit of the answer. 
Result so far: 24723.76
Deduct 5112 from 5960 and we're left with 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

Going ahead to step 11:
When dividing 8480 by 852, we get 9 with a remainder of 812.
Record the quotient 9 as the next digit in the result. 
Result so far: 24723.769
If we subtract 7668 from 8480, we get 812.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

On to step 12:
When dividing 8120 by 852, we get 9 with a remainder of 452.
The number 9 becomes the next digit in our result. 
Result so far: 24723.7699
Subtracting 7668 from 8120 leaves us with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

After the division, we end up with 24723.7699 and a remainder of 0.00452.