Let's divide 51496739 by 668
We want to divide 51496739 by 668.

Step 1:
5 divided by 668 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 668

Going ahead to step 2:
668 can be fit into 51 0 times, resulting in a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 668

Going ahead to step 3:
668 can be fit into 514 0 times, resulting in a remainder of 514.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 514 after subtracting 0 from 514.
Take the next digit (9) from the dividend and append it to 514, then repeat: 5149 / 668

Advancing to step 4:
668 can be fit into 5149 7 times, resulting in a remainder of 473.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 4676 from 5149 to get 473.
Append the next digit (6) from the dividend to 473 and continue with: 4736 / 668

On to step 5:
668 goes into 4736 7 times with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 77.0
The remainder is 60 after subtracting 4676 from 4736.
Take the next digit (7) from the dividend and append it to 60, then repeat: 607 / 668

Moving on to step 6:
If we divide 607 by 668, we get 0 and a remainder of 607.
The number 0 becomes the next digit in our result. 
Result so far: 770.0
The remainder is 607 after subtracting 0 from 607.
Take the next digit (3) from the dividend and append it to 607, then repeat: 6073 / 668

Moving on to step 7:
668 can be fit into 6073 9 times, resulting in a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 7709.0
If we take 6012 away from 6073, we end up with 61.
Take the next digit (9) from the dividend and append it to 61, then repeat: 619 / 668

On to step 8:
When dividing 619 by 668, we get 0 with a remainder of 619.
Record the quotient 0 as the next digit in the result. 
Result so far: 77090.0
The remainder is 619 after subtracting 0 from 619.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6190, and continue the process.

Advancing to step 9:
6190 divided by 668 is 9 with a remainder of 178.
Write down 9 as next digit of the result. 
Result so far: 77090.9
Deduct 6012 from 6190 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 10:
668 can be fit into 1780 2 times, resulting in a remainder of 444.
Write down 2 as next digit of the result. 
Result so far: 77090.92
The remainder is 444 after subtracting 1336 from 1780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Moving on to step 11:
4440 divided by 668 is 6 with a remainder of 432.
Use 6 as the next digit of our solution. 
Result so far: 77090.926
If we subtract 4008 from 4440, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Going ahead to step 12:
If we divide 4320 by 668, we get 6 and a remainder of 312.
The number 6 becomes the next digit in our result. 
Result so far: 77090.9266
If we subtract 4008 from 4320, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

The final result is 77090.9266 with a remainder of 0.00312.