660494 ÷ 51 
We want to divide 660494 by 51.

Going ahead to step 1:
The number 51 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 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
If we subtract 51 from 66, we get 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 51

Advancing to step 3:
If we divide 150 by 51, we get 2 and a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 102 from 150 to get 48.
Include the next digit (4) from the dividend after 48, then repeat: 484 / 51

On to step 4:
If we divide 484 by 51, we get 9 and a remainder of 25.
The next digit of our result is 9. 
Result so far: 129.0
If we take 459 away from 484, we end up with 25.
Include the next digit (9) from the dividend after 25, then repeat: 259 / 51

Moving on to step 5:
When dividing 259 by 51, we get 5 with a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 1295.0
Subtracting 255 from 259 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 51

Moving on to step 6:
44 divided by 51 is 0 with a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 12950.0
If we take 0 away from 44, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 7:
When dividing 440 by 51, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 12950.8
If we take 408 away from 440, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
If we divide 320 by 51, we get 6 and a remainder of 14.
The next digit of our result is 6. 
Result so far: 12950.86
Deduct 306 from 320 and we're left 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.

Moving on to step 9:
51 goes into 140 2 times with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 12950.862
Subtracting 102 from 140 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
The number 51 fits into 380 7 times, leaving a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 12950.8627
If we take 357 away from 380, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 11:
230 divided by 51 is 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 12950.86274
If we subtract 204 from 230, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 12:
When dividing 260 by 51, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12950.862745
If we subtract 255 from 260, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 13:
If we divide 50 by 51, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 12950.862745
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
The number 51 fits into 500 9 times, leaving a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 12950.86274509
Deduct 459 from 500 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 12950.86274509 with a remaining 4.1e-08.