We're dividing 51084640 by 865 
We want to divide 51084640 by 865.

Going ahead to step 1:
865 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 865

Step 2:
865 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Take the next digit (0) from the dividend and append it to 51, then repeat: 510 / 865

Step 3:
865 goes into 510 0 times with a remainder of 510.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 510 and we're left with 510.
Bring next digit (8) of the dividend behind the 510 and repeat the process: 5108 / 865

Step 4:
The number 865 fits into 5108 5 times, leaving a remainder of 783.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 4325 from 5108 to get 783.
Include the next digit (4) from the dividend after 783, then repeat: 7834 / 865

Step 5:
7834 divided by 865 is 9 with a remainder of 49.
The next digit of our result is 9. 
Result so far: 59.0
If we take 7785 away from 7834, we end up with 49.
Grab the next digit (6) from the dividend, add it to 49, then carry on: 496 / 865

Advancing to step 6:
The number 865 fits into 496 0 times, leaving a remainder of 496.
The next digit of our result is 0. 
Result so far: 590.0
The remainder is 496 after subtracting 0 from 496.
Bring next digit (4) of the dividend behind the 496 and repeat the process: 4964 / 865

On to step 7:
865 goes into 4964 5 times with a remainder of 639.
The next digit of our result is 5. 
Result so far: 5905.0
Subtract 4325 from 4964 to get 639.
Take the next digit (0) from the dividend and append it to 639, then repeat: 6390 / 865

Advancing to step 8:
If we divide 6390 by 865, we get 7 and a remainder of 335.
Put 7 as the next digit of the answer. 
Result so far: 59057.0
Subtracting 6055 from 6390 leaves us with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Let's proceed to step 9:
If we divide 3350 by 865, we get 3 and a remainder of 755.
Write down 3 as next digit of the result. 
Result so far: 59057.3
Deduct 2595 from 3350 and we're left with 755.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7550, and continue the process.

Let's proceed to step 10:
865 can be fit into 7550 8 times, resulting in a remainder of 630.
The next digit of our result is 8. 
Result so far: 59057.38
The remainder is 630 after subtracting 6920 from 7550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

On to step 11:
The number 865 fits into 6300 7 times, leaving a remainder of 245.
The number 7 becomes the next digit in our result. 
Result so far: 59057.387
If we subtract 6055 from 6300, we get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Going ahead to step 12:
If we divide 2450 by 865, we get 2 and a remainder of 720.
The next digit of our result is 2. 
Result so far: 59057.3872
Subtract 1730 from 2450 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Step 13:
If we divide 7200 by 865, we get 8 and a remainder of 280.
The number 8 becomes the next digit in our result. 
Result so far: 59057.38728
Subtracting 6920 from 7200 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 14:
865 can be fit into 2800 3 times, resulting in a remainder of 205.
Use 3 as the next digit of our solution. 
Result so far: 59057.387283
Subtract 2595 from 2800 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 15:
2050 divided by 865 is 2 with a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 59057.3872832
The remainder is 320 after subtracting 1730 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 16:
865 goes into 3200 3 times with a remainder of 605.
Put 3 as the next digit of the answer. 
Result so far: 59057.38728323
Subtract 2595 from 3200 to get 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

The final outcome is 59057.38728323, with a leftover of 6.05e-07.