672320 ÷ 81 
We want to figure out the number of times 672320 can be divided by 81.

Moving on to step 1:
81 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 81

Advancing to step 2:
If we divide 67 by 81, we get 0 and a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Fetch the next digit (2) from the dividend, attach it to 67 and continue: 672 / 81

Step 3:
81 goes into 672 8 times with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 648 from 672 leaves us with 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 81

Advancing to step 4:
The number 81 fits into 243 3 times, leaving a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 83.0
Deduct 243 from 243 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 81

Advancing to step 5:
81 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 830.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 81

Moving on to step 6:
81 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 8300.0
Subtracting 0 from 20 leaves us 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.

Advancing to step 7:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 8300.2
Subtract 162 from 200 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 8:
If we divide 380 by 81, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 8300.24
Subtract 324 from 380 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
The number 81 fits into 560 6 times, leaving a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 8300.246
The remainder is 74 after subtracting 486 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 10:
If we divide 740 by 81, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 8300.2469
If we subtract 729 from 740, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
When dividing 110 by 81, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 8300.24691
If we take 81 away from 110, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 12:
81 can be fit into 290 3 times, resulting in a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 8300.246913
The remainder is 47 after subtracting 243 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 13:
The number 81 fits into 470 5 times, leaving a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 8300.2469135
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 14:
81 can be fit into 650 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 8300.24691358
Deduct 648 from 650 and we're left 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.

The final outcome is 8300.24691358, with a leftover of 2e-09.