We divide 687668 by 20
We want to divide 687668 by 20.

Moving on to step 1:
When dividing 6 by 20, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 20

Let's proceed to step 2:
68 divided by 20 is 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 8 after subtracting 60 from 68.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 20

Step 3:
20 goes into 87 4 times with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Deduct 80 from 87 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 20

Moving on to step 4:
When dividing 76 by 20, we get 3 with a remainder of 16.
The next digit of our result is 3. 
Result so far: 343.0
Subtracting 60 from 76 leaves us with 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 20

Moving on to step 5:
20 goes into 166 8 times with a remainder of 6.
The next digit of our result is 8. 
Result so far: 3438.0
Subtracting 160 from 166 leaves us with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 20

Going ahead to step 6:
20 goes into 68 3 times with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 34383.0
Subtracting 60 from 68 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
If we divide 80 by 20, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 34383.4
Subtract 80 from 80 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.

Let's proceed to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 34383.4
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.

Moving on to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 34383.4
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 34383.4 with a remainder of 0.0.