51139844 divided by 863 
We want to divide 51139844 by 863.

Moving on to step 1:
863 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 863

Step 2:
863 goes into 51 0 times with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 863

On to step 3:
If we divide 511 by 863, we get 0 and a remainder of 511.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 511 after subtracting 0 from 511.
Fetch the next digit (3) from the dividend, attach it to 511 and continue: 5113 / 863

On to step 4:
If we divide 5113 by 863, we get 5 and a remainder of 798.
The next digit of our result is 5. 
Result so far: 5.0
If we take 4315 away from 5113, we end up with 798.
Fetch the next digit (9) from the dividend, attach it to 798 and continue: 7989 / 863

Moving on to step 5:
7989 divided by 863 is 9 with a remainder of 222.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we subtract 7767 from 7989, we get 222.
Append the next digit (8) from the dividend to 222 and continue with: 2228 / 863

Let's proceed to step 6:
2228 divided by 863 is 2 with a remainder of 502.
Write down 2 as next digit of the result. 
Result so far: 592.0
If we take 1726 away from 2228, we end up with 502.
Append the next digit (4) from the dividend to 502 and continue with: 5024 / 863

Moving on to step 7:
The number 863 fits into 5024 5 times, leaving a remainder of 709.
Use 5 as the next digit of our solution. 
Result so far: 5925.0
If we take 4315 away from 5024, we end up with 709.
Grab the next digit (4) from the dividend, add it to 709, then carry on: 7094 / 863

Going ahead to step 8:
863 goes into 7094 8 times with a remainder of 190.
Put 8 as the next digit of the answer. 
Result so far: 59258.0
Deduct 6904 from 7094 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 9:
If we divide 1900 by 863, we get 2 and a remainder of 174.
The next digit of our result is 2. 
Result so far: 59258.2
If we take 1726 away from 1900, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
863 can be fit into 1740 2 times, resulting in a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 59258.22
The remainder is 14 after subtracting 1726 from 1740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 59258.22 with a remainder of 0.014.