We divide 685899 by 20
Let's see how many times 20 fits into 685899.

On to step 1:
6 divided by 20 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 20

Moving on to step 2:
When dividing 68 by 20, we get 3 with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 60 away from 68, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 20

Moving on to step 3:
85 divided by 20 is 4 with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Subtracting 80 from 85 leaves us with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 20

Let's proceed to step 4:
If we divide 58 by 20, we get 2 and a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 342.0
If we take 40 away from 58, we end up with 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 20

Going ahead to step 5:
The number 20 fits into 189 9 times, leaving a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 3429.0
Subtracting 180 from 189 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 20

Moving on to step 6:
The number 20 fits into 99 4 times, leaving a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 34294.0
Subtract 80 from 99 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
190 divided by 20 is 9 with a remainder of 10.
The next digit of our result is 9. 
Result so far: 34294.9
If we take 180 away from 190, 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.

On to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 34294.95
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.

Advancing to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 34294.95
Deduct 0 from 0 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.

Step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 34294.95
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 result is 34294.95 with a remainder of 0.0.