Let's divide 78865142 by 863
Our goal is to divide 78865142 by 863.

Moving on to step 1:
863 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 863

Going ahead to step 2:
The number 863 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 863

Going ahead to step 3:
863 can be fit into 788 0 times, resulting in a remainder of 788.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 788 leaves us with 788.
Take the next digit (6) from the dividend and append it to 788, then repeat: 7886 / 863

Step 4:
When dividing 7886 by 863, we get 9 with a remainder of 119.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 7767 from 7886 and we're left with 119.
Bring next digit (5) of the dividend behind the 119 and repeat the process: 1195 / 863

Going ahead to step 5:
When dividing 1195 by 863, we get 1 with a remainder of 332.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
If we take 863 away from 1195, we end up with 332.
Take the next digit (1) from the dividend and append it to 332, then repeat: 3321 / 863

Let's proceed to step 6:
When dividing 3321 by 863, we get 3 with a remainder of 732.
The number 3 becomes the next digit in our result. 
Result so far: 913.0
Subtract 2589 from 3321 to get 732.
Fetch the next digit (4) from the dividend, attach it to 732 and continue: 7324 / 863

Step 7:
The number 863 fits into 7324 8 times, leaving a remainder of 420.
The number 8 becomes the next digit in our result. 
Result so far: 9138.0
Deduct 6904 from 7324 and we're left with 420.
Append the next digit (2) from the dividend to 420 and continue with: 4202 / 863

Advancing to step 8:
If we divide 4202 by 863, we get 4 and a remainder of 750.
The next digit of our result is 4. 
Result so far: 91384.0
If we subtract 3452 from 4202, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Moving on to step 9:
When dividing 7500 by 863, we get 8 with a remainder of 596.
The next digit of our result is 8. 
Result so far: 91384.8
Deduct 6904 from 7500 and we're left with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

On to step 10:
The number 863 fits into 5960 6 times, leaving a remainder of 782.
Write down 6 as next digit of the result. 
Result so far: 91384.86
Subtract 5178 from 5960 to get 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Moving on to step 11:
The number 863 fits into 7820 9 times, leaving a remainder of 53.
Use 9 as the next digit of our solution. 
Result so far: 91384.869
If we take 7767 away from 7820, we end up 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.

Step 12:
530 divided by 863 is 0 with a remainder of 530.
Write down 0 as next digit of the result. 
Result so far: 91384.869
The remainder is 530 after subtracting 0 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 13:
If we divide 5300 by 863, we get 6 and a remainder of 122.
Use 6 as the next digit of our solution. 
Result so far: 91384.86906
Deduct 5178 from 5300 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 14:
863 can be fit into 1220 1 times, resulting in a remainder of 357.
Use 1 as the next digit of our solution. 
Result so far: 91384.869061
If we subtract 863 from 1220, we get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Advancing to step 15:
863 goes into 3570 4 times with a remainder of 118.
The next digit of our result is 4. 
Result so far: 91384.8690614
Deduct 3452 from 3570 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 16:
863 goes into 1180 1 times with a remainder of 317.
The number 1 becomes the next digit in our result. 
Result so far: 91384.86906141
The remainder is 317 after subtracting 863 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Our division results in 91384.86906141 with a remaining 3.17e-07.