663549 ÷ 51 
Let's see how many times 51 fits into 663549.

Let's proceed to step 1:
51 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 51

Going ahead to step 2:
51 can be fit into 66 1 times, resulting in a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 51 from 66 to get 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 51

Advancing to step 3:
153 divided by 51 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 153 from 153 and we're left with 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 51

Let's proceed to step 4:
The number 51 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 130.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 51

Let's proceed to step 5:
51 goes into 54 1 times with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1301.0
The remainder is 3 after subtracting 51 from 54.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 51

On to step 6:
51 goes into 39 0 times with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 13010.0
If we take 0 away from 39, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
When dividing 390 by 51, we get 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 13010.7
If we take 357 away from 390, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 8:
The number 51 fits into 330 6 times, leaving a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 13010.76
If we subtract 306 from 330, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
240 divided by 51 is 4 with a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 13010.764
Subtract 204 from 240 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
51 goes into 360 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 13010.7647
Deduct 357 from 360 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
51 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 13010.7647
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 12:
If we divide 300 by 51, we get 5 and a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 13010.764705
Subtract 255 from 300 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 13:
450 divided by 51 is 8 with a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 13010.7647058
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
420 divided by 51 is 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 13010.76470588
If we take 408 away from 420, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 13010.76470588 with a balance of 1.2e-08.