We're dividing 850460 by 20 
We want to divide 850460 by 20.

Advancing to step 1:
20 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 20

On to step 2:
20 can be fit into 85 4 times, resulting in a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 5 after subtracting 80 from 85.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 20

Advancing to step 3:
The number 20 fits into 50 2 times, leaving a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 42.0
If we subtract 40 from 50, we get 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 20

Let's proceed to step 4:
The number 20 fits into 104 5 times, leaving a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 425.0
Deduct 100 from 104 and we're left with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 20

Let's proceed to step 5:
When dividing 46 by 20, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 4252.0
Subtract 40 from 46 to get 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 20

Going ahead to step 6:
The number 20 fits into 60 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 42523.0
Subtracting 60 from 60 leaves us 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.

On to step 7:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 42523.0
Subtracting 0 from 0 leaves us 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.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 42523.0
If we subtract 0 from 0, 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.

The final outcome is 42523.0, with a leftover of 0.0.