We're dividing 81973857 by 720 
We want to figure out the number of times 81973857 can be divided by 720.

Step 1:
The number 720 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 720

Step 2:
If we divide 81 by 720, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 720

On to step 3:
If we divide 819 by 720, we get 1 and a remainder of 99.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 99 after subtracting 720 from 819.
Fetch the next digit (7) from the dividend, attach it to 99 and continue: 997 / 720

Let's proceed to step 4:
The number 720 fits into 997 1 times, leaving a remainder of 277.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 720 from 997 leaves us with 277.
Fetch the next digit (3) from the dividend, attach it to 277 and continue: 2773 / 720

Moving on to step 5:
720 goes into 2773 3 times with a remainder of 613.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
Subtracting 2160 from 2773 leaves us with 613.
Include the next digit (8) from the dividend after 613, then repeat: 6138 / 720

Let's proceed to step 6:
If we divide 6138 by 720, we get 8 and a remainder of 378.
Write down 8 as next digit of the result. 
Result so far: 1138.0
If we take 5760 away from 6138, we end up with 378.
Fetch the next digit (5) from the dividend, attach it to 378 and continue: 3785 / 720

Step 7:
When dividing 3785 by 720, we get 5 with a remainder of 185.
Put 5 as the next digit of the answer. 
Result so far: 11385.0
The remainder is 185 after subtracting 3600 from 3785.
Include the next digit (7) from the dividend after 185, then repeat: 1857 / 720

On to step 8:
The number 720 fits into 1857 2 times, leaving a remainder of 417.
Put 2 as the next digit of the answer. 
Result so far: 113852.0
If we subtract 1440 from 1857, we get 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

On to step 9:
4170 divided by 720 is 5 with a remainder of 570.
The number 5 becomes the next digit in our result. 
Result so far: 113852.5
Subtract 3600 from 4170 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Moving on to step 10:
If we divide 5700 by 720, we get 7 and a remainder of 660.
The number 7 becomes the next digit in our result. 
Result so far: 113852.57
Subtracting 5040 from 5700 leaves us with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

On to step 11:
If we divide 6600 by 720, we get 9 and a remainder of 120.
Write down 9 as next digit of the result. 
Result so far: 113852.579
Subtracting 6480 from 6600 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 12:
720 can be fit into 1200 1 times, resulting in a remainder of 480.
The number 1 becomes the next digit in our result. 
Result so far: 113852.5791
If we take 720 away from 1200, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Step 13:
720 can be fit into 4800 6 times, resulting in a remainder of 480.
The number 6 becomes the next digit in our result. 
Result so far: 113852.57916
Deduct 4320 from 4800 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Step 14:
720 goes into 4800 6 times with a remainder of 480.
Put 6 as the next digit of the answer. 
Result so far: 113852.579166
If we take 4320 away from 4800, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

After the division, we end up with 113852.579166 and a remainder of 4.8e-05.