645004 divided by 9 
We're looking to find how many times 9 goes into 645004.

Moving on to step 1:
If we divide 6 by 9, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 9

Moving on to step 2:
9 goes into 64 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 63 from 64, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 9

On to step 3:
9 can be fit into 15 1 times, resulting in a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
Subtract 9 from 15 to get 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 9

Advancing to step 4:
When dividing 60 by 9, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 716.0
The remainder is 6 after subtracting 54 from 60.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 9

Moving on to step 5:
The number 9 fits into 60 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 7166.0
Subtract 54 from 60 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 9

On to step 6:
The number 9 fits into 64 7 times, leaving a remainder of 1.
The next digit of our result is 7. 
Result so far: 71667.0
If we subtract 63 from 64, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
The number 9 fits into 10 1 times, leaving a remainder of 1.
The next digit of our result is 1. 
Result so far: 71667.1
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 8:
10 divided by 9 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 71667.11
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 71667.11 with a remaining 0.001.