Let's divide 439923 by 81
We want to figure out the number of times 439923 can be divided by 81.

Let's proceed to step 1:
When dividing 4 by 81, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 81

Step 2:
When dividing 43 by 81, we get 0 with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 81

Let's proceed to step 3:
439 divided by 81 is 5 with a remainder of 34.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 34 after subtracting 405 from 439.
Bring next digit (9) of the dividend behind the 34 and repeat the process: 349 / 81

Advancing to step 4:
81 can be fit into 349 4 times, resulting in a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 54.0
If we subtract 324 from 349, we get 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 81

On to step 5:
If we divide 252 by 81, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 543.0
Subtract 243 from 252 to get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 81

Moving on to step 6:
81 goes into 93 1 times with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 5431.0
Subtract 81 from 93 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
81 can be fit into 120 1 times, resulting in a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 5431.1
If we subtract 81 from 120, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 8:
390 divided by 81 is 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 5431.14
Subtracting 324 from 390 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
81 can be fit into 660 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 5431.148
The remainder is 12 after subtracting 648 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
81 can be fit into 120 1 times, resulting in a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 5431.1481
If we subtract 81 from 120, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 11:
When dividing 390 by 81, we get 4 with a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 5431.14814
Deduct 324 from 390 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 12:
When dividing 660 by 81, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 5431.148148
If we take 648 away from 660, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
81 goes into 120 1 times with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 5431.1481481
Subtract 81 from 120 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 14:
If we divide 390 by 81, we get 4 and a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 5431.14814814
If we subtract 324 from 390, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

After the division, we end up with 5431.14814814 and a remainder of 6.6e-08.