We divide 21242036 by 819
Let's see how many times 819 fits into 21242036.

Going ahead to step 1:
When dividing 2 by 819, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 819

Going ahead to step 2:
21 divided by 819 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 819

Let's proceed to step 3:
The number 819 fits into 212 0 times, leaving 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.
Bring next digit (4) of the dividend behind the 212 and repeat the process: 2124 / 819

On to step 4:
If we divide 2124 by 819, we get 2 and a remainder of 486.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 1638 from 2124 leaves us with 486.
Append the next digit (2) from the dividend to 486 and continue with: 4862 / 819

Moving on to step 5:
If we divide 4862 by 819, we get 5 and a remainder of 767.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtract 4095 from 4862 to get 767.
Fetch the next digit (0) from the dividend, attach it to 767 and continue: 7670 / 819

Advancing to step 6:
The number 819 fits into 7670 9 times, leaving a remainder of 299.
The number 9 becomes the next digit in our result. 
Result so far: 259.0
The remainder is 299 after subtracting 7371 from 7670.
Include the next digit (3) from the dividend after 299, then repeat: 2993 / 819

Advancing to step 7:
The number 819 fits into 2993 3 times, leaving a remainder of 536.
The next digit of our result is 3. 
Result so far: 2593.0
Subtracting 2457 from 2993 leaves us with 536.
Include the next digit (6) from the dividend after 536, then repeat: 5366 / 819

Moving on to step 8:
5366 divided by 819 is 6 with a remainder of 452.
Record the quotient 6 as the next digit in the result. 
Result so far: 25936.0
If we take 4914 away from 5366, we end up 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.

On to step 9:
819 goes into 4520 5 times with a remainder of 425.
The number 5 becomes the next digit in our result. 
Result so far: 25936.5
If we subtract 4095 from 4520, we get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 10:
When dividing 4250 by 819, we get 5 with a remainder of 155.
Put 5 as the next digit of the answer. 
Result so far: 25936.55
Deduct 4095 from 4250 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

After the division, we end up with 25936.55 and a remainder of 0.155.