81073580 ÷ 120 
We want to divide 81073580 by 120.

Step 1:
If we divide 8 by 120, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 120

Advancing to step 2:
120 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (0) from the dividend after 81, then repeat: 810 / 120

Going ahead to step 3:
120 can be fit into 810 6 times, resulting in a remainder of 90.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 720 away from 810, we end up with 90.
Take the next digit (7) from the dividend and append it to 90, then repeat: 907 / 120

Moving on to step 4:
If we divide 907 by 120, we get 7 and a remainder of 67.
Write down 7 as next digit of the result. 
Result so far: 67.0
The remainder is 67 after subtracting 840 from 907.
Grab the next digit (3) from the dividend, add it to 67, then carry on: 673 / 120

On to step 5:
If we divide 673 by 120, we get 5 and a remainder of 73.
Use 5 as the next digit of our solution. 
Result so far: 675.0
Deduct 600 from 673 and we're left with 73.
Include the next digit (5) from the dividend after 73, then repeat: 735 / 120

Going ahead to step 6:
The number 120 fits into 735 6 times, leaving a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 6756.0
Subtracting 720 from 735 leaves us with 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 120

Going ahead to step 7:
158 divided by 120 is 1 with a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 67561.0
Deduct 120 from 158 and we're left with 38.
Append the next digit (0) from the dividend to 38 and continue with: 380 / 120

Let's proceed to step 8:
120 can be fit into 380 3 times, resulting in a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 675613.0
Deduct 360 from 380 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
200 divided by 120 is 1 with a remainder of 80.
Put 1 as the next digit of the answer. 
Result so far: 675613.1
If we subtract 120 from 200, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
If we divide 800 by 120, we get 6 and a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 675613.16
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
The number 120 fits into 800 6 times, leaving a remainder of 80.
The next digit of our result is 6. 
Result so far: 675613.166
Subtract 720 from 800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 675613.166 with a remainder of 0.008.