We're dividing 203878 by 81 
Our goal is to divide 203878 by 81.

Step 1:
The number 81 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 81

Step 2:
20 divided by 81 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 81

Let's proceed to step 3:
The number 81 fits into 203 2 times, leaving a remainder of 41.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 41 after subtracting 162 from 203.
Append the next digit (8) from the dividend to 41 and continue with: 418 / 81

Advancing to step 4:
81 can be fit into 418 5 times, resulting in a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 405 away from 418, we end up with 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 81

Moving on to step 5:
The number 81 fits into 137 1 times, leaving a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Subtract 81 from 137 to get 56.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 81

On to step 6:
81 can be fit into 568 7 times, resulting in a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 2517.0
Subtract 567 from 568 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
If we divide 10 by 81, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 2517.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
81 can be fit into 100 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 2517.01
Subtracting 81 from 100 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
81 can be fit into 190 2 times, resulting in a remainder of 28.
The next digit of our result is 2. 
Result so far: 2517.012
Subtract 162 from 190 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
The number 81 fits into 280 3 times, leaving a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 2517.0123
If we take 243 away from 280, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 11:
370 divided by 81 is 4 with a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 2517.01234
The remainder is 46 after subtracting 324 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 12:
The number 81 fits into 460 5 times, leaving a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 2517.012345
If we take 405 away from 460, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
550 divided by 81 is 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 2517.0123456
Deduct 486 from 550 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
The number 81 fits into 640 7 times, leaving a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 2517.01234567
If we take 567 away from 640, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Our division results in 2517.01234567 with a remaining 7.3e-08.