We're dividing 686783 by 4 
We want to figure out the number of times 686783 can be divided by 4.

Step 1:
If we divide 6 by 4, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 4 from 6 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 4

Step 2:
28 divided by 4 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 28 from 28 to get 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 4

Advancing to step 3:
When dividing 6 by 4, we get 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 171.0
The remainder is 2 after subtracting 4 from 6.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 4

Let's proceed to step 4:
The number 4 fits into 27 6 times, leaving a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 1716.0
Subtract 24 from 27 to get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 4

On to step 5:
The number 4 fits into 38 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 17169.0
Subtract 36 from 38 to get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 4

Advancing to step 6:
The number 4 fits into 23 5 times, leaving a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 171695.0
If we take 20 away from 23, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
4 can be fit into 30 7 times, resulting in a remainder of 2.
The next digit of our result is 7. 
Result so far: 171695.7
Deduct 28 from 30 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 171695.75
If we subtract 20 from 20, 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.

Step 9:
If we divide 0 by 4, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 171695.75
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.

Let's proceed to step 10:
4 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 171695.75
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.

Our division results in 171695.75 with a remaining 0.0.