We're dividing 99770 by 12 
We want to divide 99770 by 12.

On to step 1:
If we divide 9 by 12, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 12

On to step 2:
12 can be fit into 99 8 times, resulting in a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 96 from 99, we get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 12

Advancing to step 3:
12 can be fit into 37 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
If we take 36 away from 37, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 12

Moving on to step 4:
If we divide 17 by 12, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 831.0
If we take 12 away from 17, we end up with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 12

Let's proceed to step 5:
The number 12 fits into 50 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 8314.0
Subtracting 48 from 50 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 6:
12 goes into 20 1 times with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 8314.1
Subtract 12 from 20 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
80 divided by 12 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 8314.16
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
12 can be fit into 80 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 8314.166
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 8314.166 with a remainder of 0.0008.