We divide 12312664 by 978
We want to figure out the number of times 12312664 can be divided by 978.

Let's proceed to step 1:
1 divided by 978 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 978

Advancing to step 2:
If we divide 12 by 978, we get 0 and 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.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 978

On to step 3:
When dividing 123 by 978, we get 0 with a remainder of 123.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 123, we end up with 123.
Include the next digit (1) from the dividend after 123, then repeat: 1231 / 978

Advancing to step 4:
1231 divided by 978 is 1 with a remainder of 253.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 978 from 1231 to get 253.
Bring next digit (2) of the dividend behind the 253 and repeat the process: 2532 / 978

Step 5:
978 goes into 2532 2 times with a remainder of 576.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 1956 from 2532 and we're left with 576.
Include the next digit (6) from the dividend after 576, then repeat: 5766 / 978

Going ahead to step 6:
978 can be fit into 5766 5 times, resulting in a remainder of 876.
Put 5 as the next digit of the answer. 
Result so far: 125.0
Subtract 4890 from 5766 to get 876.
Bring next digit (6) of the dividend behind the 876 and repeat the process: 8766 / 978

Step 7:
8766 divided by 978 is 8 with a remainder of 942.
Put 8 as the next digit of the answer. 
Result so far: 1258.0
If we take 7824 away from 8766, we end up with 942.
Take the next digit (4) from the dividend and append it to 942, then repeat: 9424 / 978

Step 8:
The number 978 fits into 9424 9 times, leaving a remainder of 622.
Put 9 as the next digit of the answer. 
Result so far: 12589.0
Subtract 8802 from 9424 to get 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Moving on to step 9:
The number 978 fits into 6220 6 times, leaving a remainder of 352.
Record the quotient 6 as the next digit in the result. 
Result so far: 12589.6
The remainder is 352 after subtracting 5868 from 6220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 10:
The number 978 fits into 3520 3 times, leaving a remainder of 586.
The next digit of our result is 3. 
Result so far: 12589.63
Subtract 2934 from 3520 to get 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Going ahead to step 11:
If we divide 5860 by 978, we get 5 and a remainder of 970.
Write down 5 as next digit of the result. 
Result so far: 12589.635
Subtract 4890 from 5860 to get 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9700, and continue the process.

On to step 12:
978 can be fit into 9700 9 times, resulting in a remainder of 898.
Use 9 as the next digit of our solution. 
Result so far: 12589.6359
Subtract 8802 from 9700 to get 898.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8980, and continue the process.

Advancing to step 13:
8980 divided by 978 is 9 with a remainder of 178.
Record the quotient 9 as the next digit in the result. 
Result so far: 12589.63599
The remainder is 178 after subtracting 8802 from 8980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

The quotient of the division is 12589.63599, and the remainder is 0.000178.