We divide 685986 by 20
We're looking to find how many times 20 goes into 685986.

Step 1:
20 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 20

Advancing to step 2:
20 goes into 68 3 times with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 68, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 20

On to step 3:
When dividing 85 by 20, we get 4 with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 34.0
The remainder is 5 after subtracting 80 from 85.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 20

Step 4:
59 divided by 20 is 2 with a remainder of 19.
The next digit of our result is 2. 
Result so far: 342.0
The remainder is 19 after subtracting 40 from 59.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 20

Moving on to step 5:
The number 20 fits into 198 9 times, leaving a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 3429.0
Subtracting 180 from 198 leaves us with 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 20

Step 6:
20 can be fit into 186 9 times, resulting in a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 34299.0
If we take 180 away from 186, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
If we divide 60 by 20, we get 3 and a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 34299.3
Subtract 60 from 60 to 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.

Step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 34299.3
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.

Moving on to step 9:
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: 34299.3
Subtract 0 from 0 to 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 34299.3 with a remainder of 0.0.