12170359 ÷ 664 
We want to divide 12170359 by 664.

Step 1:
664 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 664

Step 2:
12 divided by 664 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 664

Step 3:
The number 664 fits into 121 0 times, leaving a remainder of 121.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 121 to get 121.
Fetch the next digit (7) from the dividend, attach it to 121 and continue: 1217 / 664

Moving on to step 4:
1217 divided by 664 is 1 with a remainder of 553.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 553 after subtracting 664 from 1217.
Append the next digit (0) from the dividend to 553 and continue with: 5530 / 664

Advancing to step 5:
When dividing 5530 by 664, we get 8 with a remainder of 218.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtracting 5312 from 5530 leaves us with 218.
Append the next digit (3) from the dividend to 218 and continue with: 2183 / 664

Let's proceed to step 6:
664 can be fit into 2183 3 times, resulting in a remainder of 191.
Use 3 as the next digit of our solution. 
Result so far: 183.0
If we subtract 1992 from 2183, we get 191.
Fetch the next digit (5) from the dividend, attach it to 191 and continue: 1915 / 664

Step 7:
The number 664 fits into 1915 2 times, leaving a remainder of 587.
The number 2 becomes the next digit in our result. 
Result so far: 1832.0
Subtract 1328 from 1915 to get 587.
Include the next digit (9) from the dividend after 587, then repeat: 5879 / 664

Moving on to step 8:
5879 divided by 664 is 8 with a remainder of 567.
The next digit of our result is 8. 
Result so far: 18328.0
Deduct 5312 from 5879 and we're left with 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

Let's proceed to step 9:
When dividing 5670 by 664, we get 8 with a remainder of 358.
Record the quotient 8 as the next digit in the result. 
Result so far: 18328.8
The remainder is 358 after subtracting 5312 from 5670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Step 10:
664 can be fit into 3580 5 times, resulting in a remainder of 260.
Put 5 as the next digit of the answer. 
Result so far: 18328.85
If we subtract 3320 from 3580, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 11:
664 goes into 2600 3 times with a remainder of 608.
Record the quotient 3 as the next digit in the result. 
Result so far: 18328.853
Deduct 1992 from 2600 and we're left with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Step 12:
6080 divided by 664 is 9 with a remainder of 104.
Write down 9 as next digit of the result. 
Result so far: 18328.8539
The remainder is 104 after subtracting 5976 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 13:
If we divide 1040 by 664, we get 1 and a remainder of 376.
Put 1 as the next digit of the answer. 
Result so far: 18328.85391
Deduct 664 from 1040 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Let's proceed to step 14:
664 goes into 3760 5 times with a remainder of 440.
Use 5 as the next digit of our solution. 
Result so far: 18328.853915
If we subtract 3320 from 3760, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 15:
664 goes into 4400 6 times with a remainder of 416.
The number 6 becomes the next digit in our result. 
Result so far: 18328.8539156
Deduct 3984 from 4400 and we're left with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

On to step 16:
664 can be fit into 4160 6 times, resulting in a remainder of 176.
The number 6 becomes the next digit in our result. 
Result so far: 18328.85391566
Deduct 3984 from 4160 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

In conclusion, the division gives 18328.85391566 with a balance of 1.76e-07.