120066 ÷ 99 
Our goal is to divide 120066 by 99.

Moving on to step 1:
99 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 99

Step 2:
When dividing 12 by 99, we get 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 99

Advancing to step 3:
120 divided by 99 is 1 with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 21 after subtracting 99 from 120.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 99

On to step 4:
If we divide 210 by 99, we get 2 and a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 198 from 210 leaves us with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 99

On to step 5:
If we divide 126 by 99, we get 1 and a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 121.0
If we subtract 99 from 126, we get 27.
Grab the next digit (6) from the dividend, add it to 27, then carry on: 276 / 99

Moving on to step 6:
If we divide 276 by 99, we get 2 and a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 1212.0
Subtract 198 from 276 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 7:
If we divide 780 by 99, we get 7 and a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 1212.7
Subtracting 693 from 780 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 8:
99 can be fit into 870 8 times, resulting in a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 1212.78
Deduct 792 from 870 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 9:
99 can be fit into 780 7 times, resulting in a remainder of 87.
The number 7 becomes the next digit in our result. 
Result so far: 1212.787
If we take 693 away from 780, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
99 can be fit into 870 8 times, resulting in a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 1212.7878
If we subtract 792 from 870, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 11:
99 goes into 780 7 times with a remainder of 87.
Write down 7 as next digit of the result. 
Result so far: 1212.78787
If we take 693 away from 780, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 12:
The number 99 fits into 870 8 times, leaving a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 1212.787878
The remainder is 78 after subtracting 792 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 13:
When dividing 780 by 99, we get 7 with a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 1212.7878787
The remainder is 87 after subtracting 693 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 14:
If we divide 870 by 99, we get 8 and a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 1212.78787878
If we take 792 away from 870, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

After the division, we end up with 1212.78787878 and a remainder of 7.8e-08.