668579 ÷ 64 
Let's see how many times 64 fits into 668579.

Let's proceed to step 1:
64 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 64

Advancing to step 2:
64 can be fit into 66 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 64 from 66 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 64

Let's proceed to step 3:
The number 64 fits into 28 0 times, leaving a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 28 after subtracting 0 from 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 64

On to step 4:
The number 64 fits into 285 4 times, leaving a remainder of 29.
The next digit of our result is 4. 
Result so far: 104.0
The remainder is 29 after subtracting 256 from 285.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 64

On to step 5:
64 can be fit into 297 4 times, resulting in a remainder of 41.
The next digit of our result is 4. 
Result so far: 1044.0
Subtract 256 from 297 to get 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 64

Advancing to step 6:
If we divide 419 by 64, we get 6 and a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 10446.0
If we subtract 384 from 419, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
64 can be fit into 350 5 times, resulting in a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 10446.5
If we subtract 320 from 350, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
The number 64 fits into 300 4 times, leaving a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 10446.54
If we subtract 256 from 300, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 9:
If we divide 440 by 64, we get 6 and a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 10446.546
Deduct 384 from 440 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 10:
64 goes into 560 8 times with a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 10446.5468
The remainder is 48 after subtracting 512 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
When dividing 480 by 64, we get 7 with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 10446.54687
The remainder is 32 after subtracting 448 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
When dividing 320 by 64, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 10446.546875
Subtracting 320 from 320 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 13:
If we divide 0 by 64, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10446.546875
The remainder is 0 after subtracting 0 from 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 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 10446.546875
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.

The final outcome is 10446.546875, with a leftover of 0.0.