We're dividing 439874 by 81 
We want to divide 439874 by 81.

Advancing to step 1:
4 divided by 81 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 81

Step 2:
The number 81 fits into 43 0 times, leaving 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.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 81

On 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
If we subtract 405 from 439, we get 34.
Bring next digit (8) of the dividend behind the 34 and repeat the process: 348 / 81

Going ahead to step 4:
81 can be fit into 348 4 times, resulting in a remainder of 24.
The next digit of our result is 4. 
Result so far: 54.0
Subtracting 324 from 348 leaves us with 24.
Fetch the next digit (7) from the dividend, attach it to 24 and continue: 247 / 81

Moving on to step 5:
The number 81 fits into 247 3 times, leaving a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 543.0
Subtracting 243 from 247 leaves us with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 81

On to step 6:
81 can be fit into 44 0 times, resulting in a remainder of 44.
Write down 0 as next digit of the result. 
Result so far: 5430.0
Subtract 0 from 44 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 7:
The number 81 fits into 440 5 times, leaving a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 5430.5
The remainder is 35 after subtracting 405 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 8:
If we divide 350 by 81, we get 4 and a remainder of 26.
The next digit of our result is 4. 
Result so far: 5430.54
If we take 324 away from 350, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
81 goes into 260 3 times with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 5430.543
If we subtract 243 from 260, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 10:
170 divided by 81 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 5430.5432
If we take 162 away from 170, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
The number 81 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 5430.5432
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
81 can be fit into 800 9 times, resulting in a remainder of 71.
The next digit of our result is 9. 
Result so far: 5430.543209
Subtract 729 from 800 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 13:
When dividing 710 by 81, we get 8 with a remainder of 62.
Put 8 as the next digit of the answer. 
Result so far: 5430.5432098
Deduct 648 from 710 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 14:
The number 81 fits into 620 7 times, leaving a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 5430.54320987
Subtracting 567 from 620 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

The final outcome is 5430.54320987, with a leftover of 5.3e-08.