We look at the division of 28533389 by 481 
The aim is to understand the frequency of 481 in 28533389.

Going ahead to step 1:
481 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 481

Step 2:
481 can be fit into 28 0 times, resulting in a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 481

On to step 3:
285 divided by 481 is 0 with a remainder of 285.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 285 to get 285.
Fetch the next digit (3) from the dividend, attach it to 285 and continue: 2853 / 481

Step 4:
When dividing 2853 by 481, we get 5 with a remainder of 448.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 2405 from 2853 to get 448.
Take the next digit (3) from the dividend and append it to 448, then repeat: 4483 / 481

On to step 5:
When dividing 4483 by 481, we get 9 with a remainder of 154.
The number 9 becomes the next digit in our result. 
Result so far: 59.0
Subtracting 4329 from 4483 leaves us with 154.
Grab the next digit (3) from the dividend, add it to 154, then carry on: 1543 / 481

On to step 6:
When dividing 1543 by 481, we get 3 with a remainder of 100.
Record the quotient 3 as the next digit in the result. 
Result so far: 593.0
The remainder is 100 after subtracting 1443 from 1543.
Grab the next digit (8) from the dividend, add it to 100, then carry on: 1008 / 481

On to step 7:
If we divide 1008 by 481, we get 2 and a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 5932.0
The remainder is 46 after subtracting 962 from 1008.
Take the next digit (9) from the dividend and append it to 46, then repeat: 469 / 481

Moving on to step 8:
481 goes into 469 0 times with a remainder of 469.
Use 0 as the next digit of our solution. 
Result so far: 59320.0
The remainder is 469 after subtracting 0 from 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Going ahead to step 9:
When dividing 4690 by 481, we get 9 with a remainder of 361.
Record the quotient 9 as the next digit in the result. 
Result so far: 59320.9
The remainder is 361 after subtracting 4329 from 4690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Let's proceed to step 10:
The number 481 fits into 3610 7 times, leaving a remainder of 243.
Put 7 as the next digit of the answer. 
Result so far: 59320.97
If we subtract 3367 from 3610, 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.

Moving on to step 11:
481 goes into 2430 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 59320.975
Subtracting 2405 from 2430 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 12:
The number 481 fits into 250 0 times, leaving a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 59320.975
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 13:
2500 divided by 481 is 5 with a remainder of 95.
The number 5 becomes the next digit in our result. 
Result so far: 59320.97505
The remainder is 95 after subtracting 2405 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 14:
When dividing 950 by 481, we get 1 with a remainder of 469.
Write down 1 as next digit of the result. 
Result so far: 59320.975051
If we take 481 away from 950, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Step 15:
481 goes into 4690 9 times with a remainder of 361.
The next digit of our result is 9. 
Result so far: 59320.9750519
Subtract 4329 from 4690 to get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Advancing to step 16:
481 can be fit into 3610 7 times, resulting in a remainder of 243.
Write down 7 as next digit of the result. 
Result so far: 59320.97505197
The remainder is 243 after subtracting 3367 from 3610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

The final outcome is 59320.97505197, with a leftover of 2.43e-07.