We're dividing 45587565 by 503 
The aim is to understand the frequency of 503 in 45587565.

Going ahead to step 1:
4 divided by 503 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 503

On to step 2:
503 can be fit into 45 0 times, resulting in a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 45 leaves us with 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 503

Advancing to step 3:
If we divide 455 by 503, we get 0 and a remainder of 455.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 455 after subtracting 0 from 455.
Bring next digit (8) of the dividend behind the 455 and repeat the process: 4558 / 503

Let's proceed to step 4:
503 can be fit into 4558 9 times, resulting in a remainder of 31.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 31 after subtracting 4527 from 4558.
Grab the next digit (7) from the dividend, add it to 31, then carry on: 317 / 503

Let's proceed to step 5:
When dividing 317 by 503, we get 0 with a remainder of 317.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
If we subtract 0 from 317, we get 317.
Bring next digit (5) of the dividend behind the 317 and repeat the process: 3175 / 503

Let's proceed to step 6:
If we divide 3175 by 503, we get 6 and a remainder of 157.
Put 6 as the next digit of the answer. 
Result so far: 906.0
Subtract 3018 from 3175 to get 157.
Take the next digit (6) from the dividend and append it to 157, then repeat: 1576 / 503

Moving on to step 7:
503 goes into 1576 3 times with a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 9063.0
If we take 1509 away from 1576, we end up with 67.
Include the next digit (5) from the dividend after 67, then repeat: 675 / 503

Moving on to step 8:
503 can be fit into 675 1 times, resulting in a remainder of 172.
Use 1 as the next digit of our solution. 
Result so far: 90631.0
If we subtract 503 from 675, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Moving on to step 9:
If we divide 1720 by 503, we get 3 and a remainder of 211.
Record the quotient 3 as the next digit in the result. 
Result so far: 90631.3
Deduct 1509 from 1720 and we're left with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Moving on to step 10:
When dividing 2110 by 503, we get 4 with a remainder of 98.
Put 4 as the next digit of the answer. 
Result so far: 90631.34
Subtract 2012 from 2110 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 11:
503 goes into 980 1 times with a remainder of 477.
Put 1 as the next digit of the answer. 
Result so far: 90631.341
If we subtract 503 from 980, 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.

Moving on to step 12:
If we divide 4770 by 503, we get 9 and a remainder of 243.
The number 9 becomes the next digit in our result. 
Result so far: 90631.3419
If we subtract 4527 from 4770, we get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Let's proceed to step 13:
If we divide 2430 by 503, we get 4 and a remainder of 418.
The number 4 becomes the next digit in our result. 
Result so far: 90631.34194
Subtracting 2012 from 2430 leaves us with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 14:
When dividing 4180 by 503, we get 8 with a remainder of 156.
Use 8 as the next digit of our solution. 
Result so far: 90631.341948
Deduct 4024 from 4180 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Step 15:
If we divide 1560 by 503, we get 3 and a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 90631.3419483
Deduct 1509 from 1560 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 16:
503 can be fit into 510 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 90631.34194831
Subtracting 503 from 510 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 90631.34194831 with a remaining 7e-09.