84102796 ÷ 863 
Our goal is to divide 84102796 by 863.

Step 1:
If we divide 8 by 863, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 863

Moving on to step 2:
84 divided by 863 is 0 with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Grab the next digit (1) from the dividend, add it to 84, then carry on: 841 / 863

On to step 3:
The number 863 fits into 841 0 times, leaving a remainder of 841.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 841 and we're left with 841.
Append the next digit (0) from the dividend to 841 and continue with: 8410 / 863

Let's proceed to step 4:
If we divide 8410 by 863, we get 9 and a remainder of 643.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 7767 from 8410 leaves us with 643.
Include the next digit (2) from the dividend after 643, then repeat: 6432 / 863

Let's proceed to step 5:
863 can be fit into 6432 7 times, resulting in a remainder of 391.
Put 7 as the next digit of the answer. 
Result so far: 97.0
Subtracting 6041 from 6432 leaves us with 391.
Bring next digit (7) of the dividend behind the 391 and repeat the process: 3917 / 863

Advancing to step 6:
When dividing 3917 by 863, we get 4 with a remainder of 465.
Use 4 as the next digit of our solution. 
Result so far: 974.0
If we take 3452 away from 3917, we end up with 465.
Include the next digit (9) from the dividend after 465, then repeat: 4659 / 863

On to step 7:
The number 863 fits into 4659 5 times, leaving a remainder of 344.
Put 5 as the next digit of the answer. 
Result so far: 9745.0
Subtract 4315 from 4659 to get 344.
Fetch the next digit (6) from the dividend, attach it to 344 and continue: 3446 / 863

Advancing to step 8:
863 goes into 3446 3 times with a remainder of 857.
The next digit of our result is 3. 
Result so far: 97453.0
Deduct 2589 from 3446 and we're left with 857.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8570, and continue the process.

Moving on to step 9:
When dividing 8570 by 863, we get 9 with a remainder of 803.
Write down 9 as next digit of the result. 
Result so far: 97453.9
Subtract 7767 from 8570 to get 803.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

Let's proceed to step 10:
863 can be fit into 8030 9 times, resulting in a remainder of 263.
Write down 9 as next digit of the result. 
Result so far: 97453.99
Subtracting 7767 from 8030 leaves us with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

The final result is 97453.99 with a remainder of 0.263.