We're dividing 63286854 by 503 
The aim is to understand the frequency of 503 in 63286854.

Going ahead to step 1:
The number 503 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 503

Moving on to step 2:
When dividing 63 by 503, we get 0 with a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Take the next digit (2) from the dividend and append it to 63, then repeat: 632 / 503

Advancing to step 3:
When dividing 632 by 503, we get 1 with a remainder of 129.
The next digit of our result is 1. 
Result so far: 1.0
If we take 503 away from 632, we end up with 129.
Include the next digit (8) from the dividend after 129, then repeat: 1298 / 503

Advancing to step 4:
503 can be fit into 1298 2 times, resulting in a remainder of 292.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 1006 from 1298 to get 292.
Include the next digit (6) from the dividend after 292, then repeat: 2926 / 503

Let's proceed to step 5:
2926 divided by 503 is 5 with a remainder of 411.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtracting 2515 from 2926 leaves us with 411.
Include the next digit (8) from the dividend after 411, then repeat: 4118 / 503

Step 6:
503 can be fit into 4118 8 times, resulting in a remainder of 94.
Use 8 as the next digit of our solution. 
Result so far: 1258.0
If we subtract 4024 from 4118, we get 94.
Bring next digit (5) of the dividend behind the 94 and repeat the process: 945 / 503

Moving on to step 7:
When dividing 945 by 503, we get 1 with a remainder of 442.
Put 1 as the next digit of the answer. 
Result so far: 12581.0
If we subtract 503 from 945, we get 442.
Bring next digit (4) of the dividend behind the 442 and repeat the process: 4424 / 503

On to step 8:
503 can be fit into 4424 8 times, resulting in a remainder of 400.
Use 8 as the next digit of our solution. 
Result so far: 125818.0
If we subtract 4024 from 4424, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 9:
If we divide 4000 by 503, we get 7 and a remainder of 479.
Use 7 as the next digit of our solution. 
Result so far: 125818.7
The remainder is 479 after subtracting 3521 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

Step 10:
503 goes into 4790 9 times with a remainder of 263.
Record the quotient 9 as the next digit in the result. 
Result so far: 125818.79
If we subtract 4527 from 4790, we get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Moving on to step 11:
503 goes into 2630 5 times with a remainder of 115.
The next digit of our result is 5. 
Result so far: 125818.795
If we subtract 2515 from 2630, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 12:
1150 divided by 503 is 2 with a remainder of 144.
The next digit of our result is 2. 
Result so far: 125818.7952
The remainder is 144 after subtracting 1006 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 13:
503 can be fit into 1440 2 times, resulting in a remainder of 434.
Put 2 as the next digit of the answer. 
Result so far: 125818.79522
Subtracting 1006 from 1440 leaves us with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

After the division, we end up with 125818.79522 and a remainder of 0.000434.