We're dividing 988648 by 12 
We're looking to find how many times 12 goes into 988648.

Moving on to step 1:
12 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 12

On to step 2:
98 divided by 12 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 96 from 98 to get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 12

Advancing to step 3:
28 divided by 12 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 82.0
Deduct 24 from 28 and we're left with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 12

Going ahead to step 4:
12 goes into 46 3 times with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 823.0
Subtracting 36 from 46 leaves us with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 12

On to step 5:
If we divide 104 by 12, we get 8 and a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 8238.0
Subtracting 96 from 104 leaves us with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 12

Moving on to step 6:
The number 12 fits into 88 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 82387.0
Deduct 84 from 88 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
40 divided by 12 is 3 with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 82387.3
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 82387.33
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 82387.33 with a remaining 0.004.