We're dividing 66170112 by 503 
We're looking to find how many times 503 goes into 66170112.

Step 1:
503 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 503

Advancing to step 2:
503 can be fit into 66 0 times, resulting in a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Take the next digit (1) from the dividend and append it to 66, then repeat: 661 / 503

Going ahead to step 3:
If we divide 661 by 503, we get 1 and a remainder of 158.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 503 from 661 and we're left with 158.
Take the next digit (7) from the dividend and append it to 158, then repeat: 1587 / 503

On to step 4:
The number 503 fits into 1587 3 times, leaving a remainder of 78.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 1509 from 1587, we get 78.
Include the next digit (0) from the dividend after 78, then repeat: 780 / 503

Step 5:
503 goes into 780 1 times with a remainder of 277.
The next digit of our result is 1. 
Result so far: 131.0
Subtracting 503 from 780 leaves us with 277.
Take the next digit (1) from the dividend and append it to 277, then repeat: 2771 / 503

On to step 6:
503 can be fit into 2771 5 times, resulting in a remainder of 256.
Record the quotient 5 as the next digit in the result. 
Result so far: 1315.0
If we take 2515 away from 2771, we end up with 256.
Grab the next digit (1) from the dividend, add it to 256, then carry on: 2561 / 503

On to step 7:
2561 divided by 503 is 5 with a remainder of 46.
Record the quotient 5 as the next digit in the result. 
Result so far: 13155.0
If we subtract 2515 from 2561, we get 46.
Bring next digit (2) of the dividend behind the 46 and repeat the process: 462 / 503

Going ahead to step 8:
503 can be fit into 462 0 times, resulting in a remainder of 462.
The number 0 becomes the next digit in our result. 
Result so far: 131550.0
If we take 0 away from 462, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Step 9:
When dividing 4620 by 503, we get 9 with a remainder of 93.
Use 9 as the next digit of our solution. 
Result so far: 131550.9
Subtracting 4527 from 4620 leaves us with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 10:
When dividing 930 by 503, we get 1 with a remainder of 427.
Write down 1 as next digit of the result. 
Result so far: 131550.91
Subtract 503 from 930 to get 427.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4270, and continue the process.

Advancing to step 11:
503 goes into 4270 8 times with a remainder of 246.
Write down 8 as next digit of the result. 
Result so far: 131550.918
Subtracting 4024 from 4270 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 12:
503 goes into 2460 4 times with a remainder of 448.
The next digit of our result is 4. 
Result so far: 131550.9184
Subtracting 2012 from 2460 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 13:
503 can be fit into 4480 8 times, resulting in a remainder of 456.
Use 8 as the next digit of our solution. 
Result so far: 131550.91848
If we take 4024 away from 4480, we end up 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.

Going ahead to step 14:
The number 503 fits into 4560 9 times, leaving a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 131550.918489
Deduct 4527 from 4560 and we're left 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.

Moving on to step 15:
When dividing 330 by 503, we get 0 with a remainder of 330.
Record the quotient 0 as the next digit in the result. 
Result so far: 131550.918489
Deduct 0 from 330 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 16:
When dividing 3300 by 503, we get 6 with a remainder of 282.
Use 6 as the next digit of our solution. 
Result so far: 131550.91848906
Deduct 3018 from 3300 and we're left with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

The final result is 131550.91848906 with a remainder of 2.82e-07.