605851 divided by 20 
Let's see how many times 20 fits into 605851.

Advancing to step 1:
20 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 20

Moving on to step 2:
The number 20 fits into 60 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 60 from 60 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 20

Let's proceed to step 3:
If we divide 5 by 20, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Going ahead to step 4:
If we divide 58 by 20, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 302.0
Deduct 40 from 58 and we're left with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 20

Let's proceed to step 5:
185 divided by 20 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 3029.0
Deduct 180 from 185 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 20

Let's proceed to step 6:
20 can be fit into 51 2 times, resulting in a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 30292.0
The remainder is 11 after subtracting 40 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
110 divided by 20 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 30292.5
If we take 100 away from 110, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 30292.55
Deduct 100 from 100 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 30292.55, and the remainder is 0.0.