We're dividing 20415207 by 844 
We want to divide 20415207 by 844.

Step 1:
844 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 844

Step 2:
844 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 844

On to step 3:
844 goes into 204 0 times with a remainder of 204.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 204 to get 204.
Bring next digit (1) of the dividend behind the 204 and repeat the process: 2041 / 844

On to step 4:
The number 844 fits into 2041 2 times, leaving a remainder of 353.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1688 from 2041 and we're left with 353.
Grab the next digit (5) from the dividend, add it to 353, then carry on: 3535 / 844

Moving on to step 5:
The number 844 fits into 3535 4 times, leaving a remainder of 159.
The next digit of our result is 4. 
Result so far: 24.0
If we subtract 3376 from 3535, we get 159.
Fetch the next digit (2) from the dividend, attach it to 159 and continue: 1592 / 844

Advancing to step 6:
The number 844 fits into 1592 1 times, leaving a remainder of 748.
Write down 1 as next digit of the result. 
Result so far: 241.0
Deduct 844 from 1592 and we're left with 748.
Take the next digit (0) from the dividend and append it to 748, then repeat: 7480 / 844

Let's proceed to step 7:
844 goes into 7480 8 times with a remainder of 728.
Put 8 as the next digit of the answer. 
Result so far: 2418.0
Deduct 6752 from 7480 and we're left with 728.
Include the next digit (7) from the dividend after 728, then repeat: 7287 / 844

Moving on to step 8:
844 goes into 7287 8 times with a remainder of 535.
Write down 8 as next digit of the result. 
Result so far: 24188.0
The remainder is 535 after subtracting 6752 from 7287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 9:
844 can be fit into 5350 6 times, resulting in a remainder of 286.
Write down 6 as next digit of the result. 
Result so far: 24188.6
If we take 5064 away from 5350, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Moving on to step 10:
When dividing 2860 by 844, we get 3 with a remainder of 328.
The next digit of our result is 3. 
Result so far: 24188.63
If we take 2532 away from 2860, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 11:
3280 divided by 844 is 3 with a remainder of 748.
Put 3 as the next digit of the answer. 
Result so far: 24188.633
If we subtract 2532 from 3280, we get 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

The final result is 24188.633 with a remainder of 0.0748.