993580 ÷ 12 
We're looking to find how many times 12 goes into 993580.

Advancing to step 1:
When dividing 9 by 12, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 12

Going ahead to step 2:
The number 12 fits into 99 8 times, leaving a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 96 from 99, we get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 12

Going ahead to step 3:
12 can be fit into 33 2 times, resulting in a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
If we subtract 24 from 33, we get 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 12

Moving on to step 4:
12 goes into 95 7 times with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 827.0
The remainder is 11 after subtracting 84 from 95.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 12

Going ahead to step 5:
If we divide 118 by 12, we get 9 and a remainder of 10.
The next digit of our result is 9. 
Result so far: 8279.0
Subtract 108 from 118 to get 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 12

Advancing to step 6:
When dividing 100 by 12, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 82798.0
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.

Step 7:
40 divided by 12 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 82798.3
The remainder is 4 after subtracting 36 from 40.
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:
If we divide 40 by 12, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 82798.33
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.

After the division, we end up with 82798.33 and a remainder of 0.004.