Let's divide 979990 by 12
We're looking to find how many times 12 goes into 979990.

On to step 1:
When dividing 9 by 12, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 12

On to step 2:
97 divided by 12 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 96 from 97 to get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 12

On to step 3:
When dividing 19 by 12, we get 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 81.0
If we take 12 away from 19, we end up with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 12

Moving on to step 4:
When dividing 79 by 12, we get 6 with a remainder of 7.
The next digit of our result is 6. 
Result so far: 816.0
Deduct 72 from 79 and we're left with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 12

Going ahead to step 5:
If we divide 79 by 12, we get 6 and a remainder of 7.
The next digit of our result is 6. 
Result so far: 8166.0
If we take 72 away from 79, we end up with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 12

On to step 6:
12 goes into 70 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 81665.0
If we take 60 away from 70, we end up with 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:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 81665.8
Subtract 96 from 100 to 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.

Let's proceed to step 8:
If we divide 40 by 12, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 81665.83
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.

Let's proceed to step 9:
12 goes into 40 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 81665.833
Subtracting 36 from 40 leaves us 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.

In conclusion, the division gives 81665.833 with a balance of 0.0004.