Let's divide 686520 by 4
We're looking to find how many times 4 goes into 686520.

Step 1:
6 divided by 4 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 2 after subtracting 4 from 6.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 4

Let's proceed to step 2:
The number 4 fits into 28 7 times, leaving a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 28 away from 28, we end up with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 4

Step 3:
6 divided by 4 is 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 171.0
Deduct 4 from 6 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 4

Going ahead to step 4:
If we divide 25 by 4, we get 6 and a remainder of 1.
The next digit of our result is 6. 
Result so far: 1716.0
Deduct 24 from 25 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Going ahead to step 5:
12 divided by 4 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 17163.0
If we take 12 away from 12, we end up with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 4

Moving on to step 6:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 171630.0
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.

Step 7:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 171630.0
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.

Advancing to step 8:
When dividing 0 by 4, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 171630.0
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.

The quotient of the division is 171630.0, and the remainder is 0.0.