Let's divide 21129175 by 863
Let's see how many times 863 fits into 21129175.

Let's proceed to step 1:
863 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 863

Moving on to step 2:
If we divide 21 by 863, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 863

On to step 3:
The number 863 fits into 211 0 times, leaving a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Append the next digit (2) from the dividend to 211 and continue with: 2112 / 863

Going ahead to step 4:
2112 divided by 863 is 2 with a remainder of 386.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 1726 from 2112 leaves us with 386.
Fetch the next digit (9) from the dividend, attach it to 386 and continue: 3869 / 863

Let's proceed to step 5:
863 can be fit into 3869 4 times, resulting in a remainder of 417.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
If we take 3452 away from 3869, we end up with 417.
Bring next digit (1) of the dividend behind the 417 and repeat the process: 4171 / 863

Advancing to step 6:
The number 863 fits into 4171 4 times, leaving a remainder of 719.
The next digit of our result is 4. 
Result so far: 244.0
Deduct 3452 from 4171 and we're left with 719.
Grab the next digit (7) from the dividend, add it to 719, then carry on: 7197 / 863

Going ahead to step 7:
7197 divided by 863 is 8 with a remainder of 293.
Use 8 as the next digit of our solution. 
Result so far: 2448.0
The remainder is 293 after subtracting 6904 from 7197.
Grab the next digit (5) from the dividend, add it to 293, then carry on: 2935 / 863

Advancing to step 8:
863 goes into 2935 3 times with a remainder of 346.
The number 3 becomes the next digit in our result. 
Result so far: 24483.0
Deduct 2589 from 2935 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Going ahead to step 9:
When dividing 3460 by 863, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 24483.4
If we subtract 3452 from 3460, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
863 goes into 80 0 times with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 24483.4
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
If we divide 800 by 863, we get 0 and a remainder of 800.
Write down 0 as next digit of the result. 
Result so far: 24483.4
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The final outcome is 24483.4, with a leftover of 0.08.