We're dividing 20420343 by 991 
We want to divide 20420343 by 991.

Going ahead to step 1:
2 divided by 991 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 991

Step 2:
If we divide 20 by 991, we get 0 and 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.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 991

Moving on to step 3:
If we divide 204 by 991, we get 0 and a remainder of 204.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 204, we end up with 204.
Append the next digit (2) from the dividend to 204 and continue with: 2042 / 991

Let's proceed to step 4:
991 can be fit into 2042 2 times, resulting in a remainder of 60.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1982 away from 2042, we end up with 60.
Bring next digit (0) of the dividend behind the 60 and repeat the process: 600 / 991

Going ahead to step 5:
991 can be fit into 600 0 times, resulting in a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtract 0 from 600 to get 600.
Take the next digit (3) from the dividend and append it to 600, then repeat: 6003 / 991

Advancing to step 6:
When dividing 6003 by 991, we get 6 with a remainder of 57.
Write down 6 as next digit of the result. 
Result so far: 206.0
The remainder is 57 after subtracting 5946 from 6003.
Include the next digit (4) from the dividend after 57, then repeat: 574 / 991

Moving on to step 7:
991 goes into 574 0 times with a remainder of 574.
Record the quotient 0 as the next digit in the result. 
Result so far: 2060.0
If we take 0 away from 574, we end up with 574.
Include the next digit (3) from the dividend after 574, then repeat: 5743 / 991

Step 8:
991 can be fit into 5743 5 times, resulting in a remainder of 788.
The number 5 becomes the next digit in our result. 
Result so far: 20605.0
If we subtract 4955 from 5743, we get 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

Step 9:
7880 divided by 991 is 7 with a remainder of 943.
The next digit of our result is 7. 
Result so far: 20605.7
Subtract 6937 from 7880 to get 943.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9430, and continue the process.

Step 10:
If we divide 9430 by 991, we get 9 and a remainder of 511.
Use 9 as the next digit of our solution. 
Result so far: 20605.79
Subtracting 8919 from 9430 leaves us with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Moving on to step 11:
When dividing 5110 by 991, we get 5 with a remainder of 155.
Use 5 as the next digit of our solution. 
Result so far: 20605.795
If we take 4955 away from 5110, we end up 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.

Let's proceed to step 12:
1550 divided by 991 is 1 with a remainder of 559.
Record the quotient 1 as the next digit in the result. 
Result so far: 20605.7951
The remainder is 559 after subtracting 991 from 1550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

On to step 13:
991 goes into 5590 5 times with a remainder of 635.
Record the quotient 5 as the next digit in the result. 
Result so far: 20605.79515
The remainder is 635 after subtracting 4955 from 5590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Advancing to step 14:
6350 divided by 991 is 6 with a remainder of 404.
Put 6 as the next digit of the answer. 
Result so far: 20605.795156
Deduct 5946 from 6350 and we're left with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

On to step 15:
The number 991 fits into 4040 4 times, leaving a remainder of 76.
The next digit of our result is 4. 
Result so far: 20605.7951564
The remainder is 76 after subtracting 3964 from 4040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 16:
991 can be fit into 760 0 times, resulting in a remainder of 760.
The next digit of our result is 0. 
Result so far: 20605.7951564
The remainder is 760 after subtracting 0 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

The final result is 20605.7951564 with a remainder of 7.6e-07.