We're dividing 51240211 by 578 
Let's see how many times 578 fits into 51240211.

Let's proceed to step 1:
5 divided by 578 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 578

On to step 2:
If we divide 51 by 578, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 578

On to step 3:
578 goes into 512 0 times with a remainder of 512.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 512 after subtracting 0 from 512.
Take the next digit (4) from the dividend and append it to 512, then repeat: 5124 / 578

Moving on to step 4:
When dividing 5124 by 578, we get 8 with a remainder of 500.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 500 after subtracting 4624 from 5124.
Take the next digit (0) from the dividend and append it to 500, then repeat: 5000 / 578

Step 5:
The number 578 fits into 5000 8 times, leaving a remainder of 376.
The next digit of our result is 8. 
Result so far: 88.0
Subtract 4624 from 5000 to get 376.
Take the next digit (2) from the dividend and append it to 376, then repeat: 3762 / 578

Going ahead to step 6:
When dividing 3762 by 578, we get 6 with a remainder of 294.
Write down 6 as next digit of the result. 
Result so far: 886.0
Subtract 3468 from 3762 to get 294.
Include the next digit (1) from the dividend after 294, then repeat: 2941 / 578

Advancing to step 7:
578 can be fit into 2941 5 times, resulting in a remainder of 51.
Write down 5 as next digit of the result. 
Result so far: 8865.0
Subtracting 2890 from 2941 leaves us with 51.
Append the next digit (1) from the dividend to 51 and continue with: 511 / 578

Step 8:
The number 578 fits into 511 0 times, leaving a remainder of 511.
Write down 0 as next digit of the result. 
Result so far: 88650.0
Deduct 0 from 511 and we're left with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Moving on to step 9:
578 goes into 5110 8 times with a remainder of 486.
The number 8 becomes the next digit in our result. 
Result so far: 88650.8
Subtract 4624 from 5110 to get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 10:
When dividing 4860 by 578, we get 8 with a remainder of 236.
Use 8 as the next digit of our solution. 
Result so far: 88650.88
The remainder is 236 after subtracting 4624 from 4860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Our division results in 88650.88 with a remaining 0.236.