842911 divided by 20 
We're looking to find how many times 20 goes into 842911.

Going ahead to step 1:
The number 20 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 20

Advancing to step 2:
When dividing 84 by 20, we get 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 80 from 84 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 20

Going ahead to step 3:
The number 20 fits into 42 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 42.0
The remainder is 2 after subtracting 40 from 42.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 20

Moving on to step 4:
When dividing 29 by 20, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 421.0
The remainder is 9 after subtracting 20 from 29.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 20

Moving on to step 5:
91 divided by 20 is 4 with a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 4214.0
If we take 80 away from 91, we end up with 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 20

On to step 6:
The number 20 fits into 111 5 times, leaving a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 42145.0
Subtracting 100 from 111 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
20 can be fit into 110 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 42145.5
The remainder is 10 after subtracting 100 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
100 divided by 20 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 42145.55
If we subtract 100 from 100, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 42145.55 and a remainder of 0.0.