We look at the division of 10663956 by 509 
We're looking to find how many times 509 goes into 10663956.

Step 1:
The number 509 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 509

On to step 2:
509 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 509

On to step 3:
The number 509 fits into 106 0 times, leaving a remainder of 106.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 106 and we're left with 106.
Append the next digit (6) from the dividend to 106 and continue with: 1066 / 509

Moving on to step 4:
509 can be fit into 1066 2 times, resulting in a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1018 from 1066, we get 48.
Include the next digit (3) from the dividend after 48, then repeat: 483 / 509

Moving on to step 5:
509 goes into 483 0 times with a remainder of 483.
The next digit of our result is 0. 
Result so far: 20.0
If we take 0 away from 483, we end up with 483.
Append the next digit (9) from the dividend to 483 and continue with: 4839 / 509

On to step 6:
4839 divided by 509 is 9 with a remainder of 258.
The number 9 becomes the next digit in our result. 
Result so far: 209.0
Subtracting 4581 from 4839 leaves us with 258.
Bring next digit (5) of the dividend behind the 258 and repeat the process: 2585 / 509

Going ahead to step 7:
If we divide 2585 by 509, we get 5 and a remainder of 40.
The next digit of our result is 5. 
Result so far: 2095.0
The remainder is 40 after subtracting 2545 from 2585.
Take the next digit (6) from the dividend and append it to 40, then repeat: 406 / 509

Advancing to step 8:
The number 509 fits into 406 0 times, leaving a remainder of 406.
Record the quotient 0 as the next digit in the result. 
Result so far: 20950.0
If we take 0 away from 406, we end up with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

On to step 9:
If we divide 4060 by 509, we get 7 and a remainder of 497.
Write down 7 as next digit of the result. 
Result so far: 20950.7
Subtract 3563 from 4060 to get 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Step 10:
4970 divided by 509 is 9 with a remainder of 389.
Write down 9 as next digit of the result. 
Result so far: 20950.79
Subtracting 4581 from 4970 leaves us with 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Step 11:
When dividing 3890 by 509, we get 7 with a remainder of 327.
Put 7 as the next digit of the answer. 
Result so far: 20950.797
If we take 3563 away from 3890, we end up with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Moving on to step 12:
3270 divided by 509 is 6 with a remainder of 216.
Write down 6 as next digit of the result. 
Result so far: 20950.7976
Subtracting 3054 from 3270 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 13:
When dividing 2160 by 509, we get 4 with a remainder of 124.
The next digit of our result is 4. 
Result so far: 20950.79764
Deduct 2036 from 2160 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

On to step 14:
509 goes into 1240 2 times with a remainder of 222.
Record the quotient 2 as the next digit in the result. 
Result so far: 20950.797642
Deduct 1018 from 1240 and we're left with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Going ahead to step 15:
If we divide 2220 by 509, we get 4 and a remainder of 184.
Record the quotient 4 as the next digit in the result. 
Result so far: 20950.7976424
If we take 2036 away from 2220, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 16:
1840 divided by 509 is 3 with a remainder of 313.
Put 3 as the next digit of the answer. 
Result so far: 20950.79764243
Deduct 1527 from 1840 and we're left with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

The quotient of the division is 20950.79764243, and the remainder is 3.13e-07.