We're dividing 640664 by 60 
Let's see how many times 60 fits into 640664.

Let's proceed to step 1:
6 divided by 60 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 60

Going ahead to step 2:
When dividing 64 by 60, we get 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 60 from 64 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 60

Step 3:
If we divide 40 by 60, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 40 leaves us with 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 60

On to step 4:
The number 60 fits into 406 6 times, leaving a remainder of 46.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtracting 360 from 406 leaves us with 46.
Fetch the next digit (6) from the dividend, attach it to 46 and continue: 466 / 60

Moving on to step 5:
When dividing 466 by 60, we get 7 with a remainder of 46.
Use 7 as the next digit of our solution. 
Result so far: 1067.0
Deduct 420 from 466 and we're left with 46.
Append the next digit (4) from the dividend to 46 and continue with: 464 / 60

On to step 6:
If we divide 464 by 60, we get 7 and a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 10677.0
Deduct 420 from 464 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
60 can be fit into 440 7 times, resulting in a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 10677.7
Subtract 420 from 440 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
60 goes into 200 3 times with a remainder of 20.
The next digit of our result is 3. 
Result so far: 10677.73
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
200 divided by 60 is 3 with a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 10677.733
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 10677.733 with a remainder of 0.002.