We look at the division of 319824 by 81 
We want to divide 319824 by 81.

On to step 1:
If we divide 3 by 81, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 81

On to step 2:
81 can be fit into 31 0 times, resulting in a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 81

On to step 3:
81 can be fit into 319 3 times, resulting in a remainder of 76.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 243 from 319 leaves us with 76.
Bring next digit (8) of the dividend behind the 76 and repeat the process: 768 / 81

Moving on to step 4:
When dividing 768 by 81, we get 9 with a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 39.0
The remainder is 39 after subtracting 729 from 768.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 81

Moving on to step 5:
81 can be fit into 392 4 times, resulting in a remainder of 68.
Record the quotient 4 as the next digit in the result. 
Result so far: 394.0
The remainder is 68 after subtracting 324 from 392.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 81

On to step 6:
81 can be fit into 684 8 times, resulting in a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 3948.0
If we subtract 648 from 684, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 7:
If we divide 360 by 81, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 3948.4
Subtract 324 from 360 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 8:
The number 81 fits into 360 4 times, leaving a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 3948.44
Subtract 324 from 360 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Our division results in 3948.44 with a remaining 0.036.