We're dividing 668950 by 51 
We want to divide 668950 by 51.

Step 1:
The number 51 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 51

Step 2:
When dividing 66 by 51, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 51 from 66 to get 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 51

Going ahead to step 3:
51 goes into 158 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 153 away from 158, we end up with 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 51

Let's proceed to step 4:
When dividing 59 by 51, we get 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 131.0
Deduct 51 from 59 and we're left with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 51

Step 5:
The number 51 fits into 85 1 times, leaving a remainder of 34.
The next digit of our result is 1. 
Result so far: 1311.0
The remainder is 34 after subtracting 51 from 85.
Take the next digit (0) from the dividend and append it to 34, then repeat: 340 / 51

Going ahead to step 6:
51 goes into 340 6 times with a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 13116.0
Subtracting 306 from 340 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
When dividing 340 by 51, we get 6 with a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 13116.6
Deduct 306 from 340 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
51 can be fit into 340 6 times, resulting in a remainder of 34.
The next digit of our result is 6. 
Result so far: 13116.66
Subtract 306 from 340 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

In conclusion, the division gives 13116.66 with a balance of 0.034.