688350 divided by 4 
We're looking to find how many times 4 goes into 688350.

Advancing to step 1:
4 goes into 6 1 times 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.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 4

Step 2:
When dividing 28 by 4, we get 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 28 from 28 and we're left with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 4

Going ahead to step 3:
When dividing 8 by 4, we get 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 172.0
Subtract 8 from 8 to get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 4

Moving on to step 4:
When dividing 3 by 4, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 1720.0
If we take 0 away from 3, we end up with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 4

Let's proceed to step 5:
4 goes into 35 8 times with a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 17208.0
The remainder is 3 after subtracting 32 from 35.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 4

Advancing to step 6:
4 goes into 30 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 172087.0
If we take 28 away from 30, we end up 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.

On to step 7:
If we divide 20 by 4, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 172087.5
Subtracting 20 from 20 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 8:
If we divide 0 by 4, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 172087.5
If we subtract 0 from 0, 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.

Let's proceed to step 9:
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: 172087.5
If we subtract 0 from 0, 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.

The final outcome is 172087.5, with a leftover of 0.0.