We look at the division of 30221969 by 502 
The aim is to understand the frequency of 502 in 30221969.

Step 1:
The number 502 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 502

Step 2:
When dividing 30 by 502, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Take the next digit (2) from the dividend and append it to 30, then repeat: 302 / 502

Step 3:
502 can be fit into 302 0 times, resulting in a remainder of 302.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 302 leaves us with 302.
Bring next digit (2) of the dividend behind the 302 and repeat the process: 3022 / 502

On to step 4:
When dividing 3022 by 502, we get 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 3012 from 3022 leaves us with 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 502

Moving on to step 5:
502 goes into 101 0 times with a remainder of 101.
Use 0 as the next digit of our solution. 
Result so far: 60.0
Deduct 0 from 101 and we're left with 101.
Include the next digit (9) from the dividend after 101, then repeat: 1019 / 502

Step 6:
502 goes into 1019 2 times with a remainder of 15.
Use 2 as the next digit of our solution. 
Result so far: 602.0
If we take 1004 away from 1019, we end up with 15.
Include the next digit (6) from the dividend after 15, then repeat: 156 / 502

Advancing to step 7:
When dividing 156 by 502, we get 0 with a remainder of 156.
Record the quotient 0 as the next digit in the result. 
Result so far: 6020.0
If we subtract 0 from 156, we get 156.
Fetch the next digit (9) from the dividend, attach it to 156 and continue: 1569 / 502

Let's proceed to step 8:
If we divide 1569 by 502, we get 3 and a remainder of 63.
Write down 3 as next digit of the result. 
Result so far: 60203.0
If we take 1506 away from 1569, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 9:
The number 502 fits into 630 1 times, leaving a remainder of 128.
Record the quotient 1 as the next digit in the result. 
Result so far: 60203.1
If we subtract 502 from 630, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 10:
If we divide 1280 by 502, we get 2 and a remainder of 276.
The next digit of our result is 2. 
Result so far: 60203.12
If we take 1004 away from 1280, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Going ahead to step 11:
502 can be fit into 2760 5 times, resulting in a remainder of 250.
Record the quotient 5 as the next digit in the result. 
Result so far: 60203.125
If we take 2510 away from 2760, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 12:
502 goes into 2500 4 times with a remainder of 492.
Record the quotient 4 as the next digit in the result. 
Result so far: 60203.1254
Subtract 2008 from 2500 to get 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Going ahead to step 13:
502 can be fit into 4920 9 times, resulting in a remainder of 402.
Put 9 as the next digit of the answer. 
Result so far: 60203.12549
If we subtract 4518 from 4920, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Moving on to step 14:
If we divide 4020 by 502, we get 8 and a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 60203.125498
Subtract 4016 from 4020 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 15:
40 divided by 502 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 60203.125498
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 16:
When dividing 400 by 502, we get 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 60203.125498
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Our division results in 60203.125498 with a remaining 4e-07.