We divide 980458 by 12
We want to divide 980458 by 12.

On to step 1:
9 divided by 12 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 12

Advancing to step 2:
12 can be fit into 98 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 96 away from 98, we end up with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 12

Step 3:
If we divide 20 by 12, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 81.0
If we take 12 away from 20, we end up with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 12

Step 4:
84 divided by 12 is 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 817.0
Subtracting 84 from 84 leaves us with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 12

Going ahead to step 5:
5 divided by 12 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 8170.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 12

Going ahead to step 6:
12 goes into 58 4 times with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 81704.0
If we subtract 48 from 58, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
When dividing 100 by 12, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 81704.8
Deduct 96 from 100 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.

Advancing to step 8:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 81704.83
If we subtract 36 from 40, we get 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 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 81704.833
If we subtract 36 from 40, we get 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 81704.833 with a remaining 0.0004.