55724319 ÷ 503 
The aim is to understand the frequency of 503 in 55724319.

Moving on to step 1:
When dividing 5 by 503, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 503

Advancing to step 2:
55 divided by 503 is 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 55 to get 55.
Grab the next digit (7) from the dividend, add it to 55, then carry on: 557 / 503

Advancing to step 3:
The number 503 fits into 557 1 times, leaving a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 503 away from 557, we end up with 54.
Append the next digit (2) from the dividend to 54 and continue with: 542 / 503

Going ahead to step 4:
The number 503 fits into 542 1 times, leaving a remainder of 39.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 39 after subtracting 503 from 542.
Include the next digit (4) from the dividend after 39, then repeat: 394 / 503

On to step 5:
503 goes into 394 0 times with a remainder of 394.
Write down 0 as next digit of the result. 
Result so far: 110.0
Subtract 0 from 394 to get 394.
Grab the next digit (3) from the dividend, add it to 394, then carry on: 3943 / 503

Going ahead to step 6:
503 can be fit into 3943 7 times, resulting in a remainder of 422.
Use 7 as the next digit of our solution. 
Result so far: 1107.0
Deduct 3521 from 3943 and we're left with 422.
Bring next digit (1) of the dividend behind the 422 and repeat the process: 4221 / 503

Advancing to step 7:
503 can be fit into 4221 8 times, resulting in a remainder of 197.
Record the quotient 8 as the next digit in the result. 
Result so far: 11078.0
If we take 4024 away from 4221, we end up with 197.
Take the next digit (9) from the dividend and append it to 197, then repeat: 1979 / 503

Moving on to step 8:
1979 divided by 503 is 3 with a remainder of 470.
Put 3 as the next digit of the answer. 
Result so far: 110783.0
If we subtract 1509 from 1979, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 9:
503 can be fit into 4700 9 times, resulting in a remainder of 173.
The next digit of our result is 9. 
Result so far: 110783.9
Subtracting 4527 from 4700 leaves us with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Moving on to step 10:
If we divide 1730 by 503, we get 3 and a remainder of 221.
Use 3 as the next digit of our solution. 
Result so far: 110783.93
Subtract 1509 from 1730 to get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Advancing to step 11:
503 can be fit into 2210 4 times, resulting in a remainder of 198.
Use 4 as the next digit of our solution. 
Result so far: 110783.934
Deduct 2012 from 2210 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Advancing to step 12:
If we divide 1980 by 503, we get 3 and a remainder of 471.
The number 3 becomes the next digit in our result. 
Result so far: 110783.9343
The remainder is 471 after subtracting 1509 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Step 13:
If we divide 4710 by 503, we get 9 and a remainder of 183.
Record the quotient 9 as the next digit in the result. 
Result so far: 110783.93439
If we subtract 4527 from 4710, we get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

On to step 14:
If we divide 1830 by 503, we get 3 and a remainder of 321.
The next digit of our result is 3. 
Result so far: 110783.934393
The remainder is 321 after subtracting 1509 from 1830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

On to step 15:
The number 503 fits into 3210 6 times, leaving a remainder of 192.
Record the quotient 6 as the next digit in the result. 
Result so far: 110783.9343936
Subtracting 3018 from 3210 leaves us with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 16:
503 can be fit into 1920 3 times, resulting in a remainder of 411.
Put 3 as the next digit of the answer. 
Result so far: 110783.93439363
Subtract 1509 from 1920 to get 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

The final result is 110783.93439363 with a remainder of 4.11e-07.