We're dividing 868786 by 20 
We want to figure out the number of times 868786 can be divided by 20.

Moving on to step 1:
When dividing 8 by 20, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 20

Going ahead to step 2:
If we divide 86 by 20, we get 4 and a remainder of 6.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 80 from 86 and we're left with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 20

Step 3:
The number 20 fits into 68 3 times, leaving a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we take 60 away from 68, we end up with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 20

Moving on to step 4:
The number 20 fits into 87 4 times, leaving a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 434.0
The remainder is 7 after subtracting 80 from 87.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 20

Step 5:
When dividing 78 by 20, we get 3 with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 4343.0
Subtracting 60 from 78 leaves us with 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 20

Moving on to step 6:
When dividing 186 by 20, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 43439.0
If we subtract 180 from 186, we get 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:
The number 20 fits into 60 3 times, leaving a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 43439.3
If we take 60 away from 60, we end up 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 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43439.3
If we take 0 away from 0, we end up 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:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 43439.3
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.

After the division, we end up with 43439.3 and a remainder of 0.0.