439789 divided by 81 
We want to figure out the number of times 439789 can be divided by 81.

Moving on to step 1:
4 divided by 81 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 81

Step 2:
When dividing 43 by 81, we get 0 with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 81

Going ahead to step 3:
81 goes into 439 5 times with a remainder of 34.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 405 from 439 to get 34.
Append the next digit (7) from the dividend to 34 and continue with: 347 / 81

Let's proceed to step 4:
When dividing 347 by 81, we get 4 with a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we subtract 324 from 347, we get 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 81

Going ahead to step 5:
When dividing 238 by 81, we get 2 with a remainder of 76.
Record the quotient 2 as the next digit in the result. 
Result so far: 542.0
Subtracting 162 from 238 leaves us with 76.
Fetch the next digit (9) from the dividend, attach it to 76 and continue: 769 / 81

Moving on to step 6:
81 goes into 769 9 times with a remainder of 40.
Write down 9 as next digit of the result. 
Result so far: 5429.0
If we subtract 729 from 769, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 7:
400 divided by 81 is 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 5429.4
Deduct 324 from 400 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
760 divided by 81 is 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 5429.49
Deduct 729 from 760 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 9:
81 can be fit into 310 3 times, resulting in a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 5429.493
Subtract 243 from 310 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 10:
The number 81 fits into 670 8 times, leaving a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 5429.4938
Deduct 648 from 670 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 11:
81 can be fit into 220 2 times, resulting in a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 5429.49382
Subtract 162 from 220 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 12:
The number 81 fits into 580 7 times, leaving a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 5429.493827
Deduct 567 from 580 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 13:
81 can be fit into 130 1 times, resulting in a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 5429.4938271
If we take 81 away from 130, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 14:
When dividing 490 by 81, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 5429.49382716
Subtract 486 from 490 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 5429.49382716 with a balance of 4e-09.