We divide 664898 by 9
Let's see how many times 9 fits into 664898.

On to step 1:
9 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 9

Advancing to step 2:
9 can be fit into 66 7 times, resulting in a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 3 after subtracting 63 from 66.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 9

On to step 3:
When dividing 34 by 9, we get 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
If we take 27 away from 34, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 9

On to step 4:
When dividing 78 by 9, we get 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 738.0
If we take 72 away from 78, we end up with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 9

Moving on to step 5:
The number 9 fits into 69 7 times, leaving a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 7387.0
Subtracting 63 from 69 leaves us with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 9

On to step 6:
If we divide 68 by 9, we get 7 and a remainder of 5.
The next digit of our result is 7. 
Result so far: 73877.0
Subtracting 63 from 68 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
When dividing 50 by 9, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 73877.5
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
The number 9 fits into 50 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 73877.55
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 73877.55, with a leftover of 0.005.