We're dividing 648068 by 51 
We want to divide 648068 by 51.

Going ahead to step 1:
The number 51 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 51

On to step 2:
When dividing 64 by 51, we get 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 51 from 64 to get 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 51

Step 3:
When dividing 138 by 51, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 102 from 138, we get 36.
Fetch the next digit (0) from the dividend, attach it to 36 and continue: 360 / 51

Let's proceed to step 4:
When dividing 360 by 51, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Deduct 357 from 360 and we're left with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 51

Step 5:
When dividing 36 by 51, we get 0 with a remainder of 36.
Use 0 as the next digit of our solution. 
Result so far: 1270.0
The remainder is 36 after subtracting 0 from 36.
Include the next digit (8) from the dividend after 36, then repeat: 368 / 51

On to step 6:
51 goes into 368 7 times with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 12707.0
If we take 357 away from 368, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
51 goes into 110 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 12707.2
Subtract 102 from 110 to 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.

Going ahead to step 8:
If we divide 80 by 51, we get 1 and a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 12707.21
If we take 51 away from 80, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 9:
290 divided by 51 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 12707.215
Deduct 255 from 290 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 10:
When dividing 350 by 51, we get 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 12707.2156
Subtract 306 from 350 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 11:
The number 51 fits into 440 8 times, leaving a remainder of 32.
The next digit of our result is 8. 
Result so far: 12707.21568
The remainder is 32 after subtracting 408 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
320 divided by 51 is 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 12707.215686
If we take 306 away from 320, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 13:
The number 51 fits into 140 2 times, leaving a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 12707.2156862
If we subtract 102 from 140, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 14:
When dividing 380 by 51, we get 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 12707.21568627
If we subtract 357 from 380, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 12707.21568627, with a leftover of 2.3e-08.