Let's divide 865821 by 78
Our goal is to divide 865821 by 78.

Let's proceed to step 1:
8 divided by 78 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 78

Let's proceed to step 2:
If we divide 86 by 78, we get 1 and a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 78 from 86, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 78

Going ahead to step 3:
When dividing 85 by 78, we get 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 78 from 85, we get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 78

Let's proceed to step 4:
78 can be fit into 78 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 111.0
Deduct 78 from 78 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 78

On to step 5:
2 divided by 78 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 1110.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 78

Going ahead to step 6:
If we divide 21 by 78, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 11100.0
If we subtract 0 from 21, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 7:
78 can be fit into 210 2 times, resulting in a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 11100.2
If we take 156 away from 210, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 8:
540 divided by 78 is 6 with a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 11100.26
Deduct 468 from 540 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 9:
When dividing 720 by 78, we get 9 with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 11100.269
The remainder is 18 after subtracting 702 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 10:
The number 78 fits into 180 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 11100.2692
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
If we divide 240 by 78, we get 3 and a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 11100.26923
Subtracting 234 from 240 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
The number 78 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 11100.26923
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
78 can be fit into 600 7 times, resulting in a remainder of 54.
The number 7 becomes the next digit in our result. 
Result so far: 11100.2692307
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 14:
78 goes into 540 6 times with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 11100.26923076
Subtracting 468 from 540 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 11100.26923076 with a remainder of 7.2e-08.