664599 divided by 4 
Let's see how many times 4 fits into 664599.

Let's proceed to step 1:
When dividing 6 by 4, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 4 from 6, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 4

Let's proceed to step 2:
4 goes into 26 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtract 24 from 26 to get 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 4

Step 3:
4 can be fit into 24 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 166.0
Deduct 24 from 24 and we're left with 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 4

Step 4:
4 goes into 5 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1661.0
Subtract 4 from 5 to get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 4

Advancing to step 5:
4 goes into 19 4 times with a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 16614.0
Deduct 16 from 19 and we're left with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 4

Going ahead to step 6:
4 goes into 39 9 times with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 166149.0
Subtracting 36 from 39 leaves us 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.

Step 7:
4 can be fit into 30 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 166149.7
Subtracting 28 from 30 leaves us 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.

Going ahead to step 8:
4 goes into 20 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 166149.75
Subtract 20 from 20 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.

Step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 166149.75
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 10:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 166149.75
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 166149.75 with a remainder of 0.0.