53878 ÷ 81 
We want to divide 53878 by 81.

Going ahead to step 1:
If we divide 5 by 81, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 81

Step 2:
The number 81 fits into 53 0 times, leaving a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Grab the next digit (8) from the dividend, add it to 53, then carry on: 538 / 81

On to step 3:
When dividing 538 by 81, we get 6 with a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 486 from 538 and we're left with 52.
Append the next digit (7) from the dividend to 52 and continue with: 527 / 81

On to step 4:
The number 81 fits into 527 6 times, leaving a remainder of 41.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Subtracting 486 from 527 leaves us with 41.
Take the next digit (8) from the dividend and append it to 41, then repeat: 418 / 81

Let's proceed to step 5:
418 divided by 81 is 5 with a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 665.0
Subtract 405 from 418 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 6:
130 divided by 81 is 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 665.1
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.

Step 7:
490 divided by 81 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 665.16
Deduct 486 from 490 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
81 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 665.16
If we take 0 away from 40, we end up with 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 9:
If we divide 400 by 81, we get 4 and a remainder of 76.
The next digit of our result is 4. 
Result so far: 665.1604
The remainder is 76 after subtracting 324 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 10:
81 goes into 760 9 times with a remainder of 31.
The next digit of our result is 9. 
Result so far: 665.16049
If we take 729 away from 760, we end up 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 11:
If we divide 310 by 81, we get 3 and a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 665.160493
Deduct 243 from 310 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 12:
The number 81 fits into 670 8 times, leaving a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 665.1604938
The remainder is 22 after subtracting 648 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 13:
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: 665.16049382
Deduct 162 from 220 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 665.16049382 and a remainder of 5.8e-08.