We look at the division of 20411635 by 391 
We want to figure out the number of times 20411635 can be divided by 391.

On to step 1:
391 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 391

On to step 2:
The number 391 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Take the next digit (4) from the dividend and append it to 20, then repeat: 204 / 391

Going ahead to step 3:
If we divide 204 by 391, we get 0 and a remainder of 204.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 204 leaves us with 204.
Append the next digit (1) from the dividend to 204 and continue with: 2041 / 391

Advancing to step 4:
The number 391 fits into 2041 5 times, leaving a remainder of 86.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 86 after subtracting 1955 from 2041.
Bring next digit (1) of the dividend behind the 86 and repeat the process: 861 / 391

On to step 5:
When dividing 861 by 391, we get 2 with a remainder of 79.
Put 2 as the next digit of the answer. 
Result so far: 52.0
The remainder is 79 after subtracting 782 from 861.
Bring next digit (6) of the dividend behind the 79 and repeat the process: 796 / 391

On to step 6:
The number 391 fits into 796 2 times, leaving a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 522.0
The remainder is 14 after subtracting 782 from 796.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 391

Moving on to step 7:
391 can be fit into 143 0 times, resulting in a remainder of 143.
The next digit of our result is 0. 
Result so far: 5220.0
Deduct 0 from 143 and we're left with 143.
Grab the next digit (5) from the dividend, add it to 143, then carry on: 1435 / 391

On to step 8:
If we divide 1435 by 391, we get 3 and a remainder of 262.
Record the quotient 3 as the next digit in the result. 
Result so far: 52203.0
If we take 1173 away from 1435, we end up with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Step 9:
If we divide 2620 by 391, we get 6 and a remainder of 274.
The next digit of our result is 6. 
Result so far: 52203.6
Subtracting 2346 from 2620 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 10:
When dividing 2740 by 391, we get 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 52203.67
Deduct 2737 from 2740 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 11:
391 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 52203.67
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 12:
300 divided by 391 is 0 with a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 52203.67
Subtracting 0 from 300 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final result is 52203.67 with a remainder of 0.003.