We're dividing 66748653 by 507 
We want to divide 66748653 by 507.

Step 1:
507 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 507

On to step 2:
507 goes into 66 0 times with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (7) from the dividend, attach it to 66 and continue: 667 / 507

Step 3:
The number 507 fits into 667 1 times, leaving a remainder of 160.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 507 from 667 and we're left with 160.
Append the next digit (4) from the dividend to 160 and continue with: 1604 / 507

Let's proceed to step 4:
The number 507 fits into 1604 3 times, leaving a remainder of 83.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtract 1521 from 1604 to get 83.
Grab the next digit (8) from the dividend, add it to 83, then carry on: 838 / 507

Step 5:
507 can be fit into 838 1 times, resulting in a remainder of 331.
Write down 1 as next digit of the result. 
Result so far: 131.0
Deduct 507 from 838 and we're left with 331.
Grab the next digit (6) from the dividend, add it to 331, then carry on: 3316 / 507

Advancing to step 6:
3316 divided by 507 is 6 with a remainder of 274.
Record the quotient 6 as the next digit in the result. 
Result so far: 1316.0
Subtract 3042 from 3316 to get 274.
Grab the next digit (5) from the dividend, add it to 274, then carry on: 2745 / 507

Step 7:
The number 507 fits into 2745 5 times, leaving a remainder of 210.
The number 5 becomes the next digit in our result. 
Result so far: 13165.0
The remainder is 210 after subtracting 2535 from 2745.
Include the next digit (3) from the dividend after 210, then repeat: 2103 / 507

Going ahead to step 8:
507 can be fit into 2103 4 times, resulting in a remainder of 75.
Record the quotient 4 as the next digit in the result. 
Result so far: 131654.0
Subtract 2028 from 2103 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 9:
The number 507 fits into 750 1 times, leaving a remainder of 243.
The number 1 becomes the next digit in our result. 
Result so far: 131654.1
The remainder is 243 after subtracting 507 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Step 10:
When dividing 2430 by 507, we get 4 with a remainder of 402.
The next digit of our result is 4. 
Result so far: 131654.14
Deduct 2028 from 2430 and we're left with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Going ahead to step 11:
507 can be fit into 4020 7 times, resulting in a remainder of 471.
Write down 7 as next digit of the result. 
Result so far: 131654.147
Subtracting 3549 from 4020 leaves us with 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Moving on to step 12:
4710 divided by 507 is 9 with a remainder of 147.
Write down 9 as next digit of the result. 
Result so far: 131654.1479
Subtract 4563 from 4710 to get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Step 13:
When dividing 1470 by 507, we get 2 with a remainder of 456.
Use 2 as the next digit of our solution. 
Result so far: 131654.14792
Subtracting 1014 from 1470 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Moving on to step 14:
The number 507 fits into 4560 8 times, leaving a remainder of 504.
The next digit of our result is 8. 
Result so far: 131654.147928
Subtracting 4056 from 4560 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Step 15:
The number 507 fits into 5040 9 times, leaving a remainder of 477.
The next digit of our result is 9. 
Result so far: 131654.1479289
If we subtract 4563 from 5040, we get 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Going ahead to step 16:
507 can be fit into 4770 9 times, resulting in a remainder of 207.
The number 9 becomes the next digit in our result. 
Result so far: 131654.14792899
If we take 4563 away from 4770, we end up with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

The final result is 131654.14792899 with a remainder of 2.07e-07.