We divide 664509 by 99
We want to divide 664509 by 99.

Let's proceed to step 1:
When dividing 6 by 99, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 99

Let's proceed to step 2:
If we divide 66 by 99, we get 0 and a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 99

Going ahead to step 3:
99 goes into 664 6 times with a remainder of 70.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 594 from 664 to get 70.
Take the next digit (5) from the dividend and append it to 70, then repeat: 705 / 99

Going ahead to step 4:
99 can be fit into 705 7 times, resulting in a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
If we subtract 693 from 705, we get 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 99

Moving on to step 5:
When dividing 120 by 99, we get 1 with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 671.0
Subtracting 99 from 120 leaves us with 21.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 99

Step 6:
99 can be fit into 219 2 times, resulting in a remainder of 21.
The number 2 becomes the next digit in our result. 
Result so far: 6712.0
The remainder is 21 after subtracting 198 from 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
If we divide 210 by 99, we get 2 and a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 6712.2
The remainder is 12 after subtracting 198 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
If we divide 120 by 99, we get 1 and a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 6712.21
If we subtract 99 from 120, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 9:
210 divided by 99 is 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 6712.212
If we subtract 198 from 210, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
99 can be fit into 120 1 times, resulting in a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 6712.2121
Deduct 99 from 120 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 11:
99 can be fit into 210 2 times, resulting in a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 6712.21212
Subtracting 198 from 210 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
120 divided by 99 is 1 with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 6712.212121
Deduct 99 from 120 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 13:
99 can be fit into 210 2 times, resulting in a remainder of 12.
The next digit of our result is 2. 
Result so far: 6712.2121212
Subtracting 198 from 210 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
When dividing 120 by 99, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 6712.21212121
Subtract 99 from 120 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

After the division, we end up with 6712.21212121 and a remainder of 2.1e-08.