We're dividing 28403877 by 498 
The aim is to understand the frequency of 498 in 28403877.

Going ahead to step 1:
2 divided by 498 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 498

Moving on to step 2:
When dividing 28 by 498, we get 0 with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Include the next digit (4) from the dividend after 28, then repeat: 284 / 498

Going ahead to step 3:
284 divided by 498 is 0 with a remainder of 284.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 284 and we're left with 284.
Grab the next digit (0) from the dividend, add it to 284, then carry on: 2840 / 498

Step 4:
2840 divided by 498 is 5 with a remainder of 350.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 2490 away from 2840, we end up with 350.
Fetch the next digit (3) from the dividend, attach it to 350 and continue: 3503 / 498

On to step 5:
498 goes into 3503 7 times with a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 57.0
If we take 3486 away from 3503, we end up with 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 498

Let's proceed to step 6:
178 divided by 498 is 0 with a remainder of 178.
Write down 0 as next digit of the result. 
Result so far: 570.0
Subtracting 0 from 178 leaves us with 178.
Include the next digit (7) from the dividend after 178, then repeat: 1787 / 498

Moving on to step 7:
498 can be fit into 1787 3 times, resulting in a remainder of 293.
The number 3 becomes the next digit in our result. 
Result so far: 5703.0
If we subtract 1494 from 1787, we get 293.
Grab the next digit (7) from the dividend, add it to 293, then carry on: 2937 / 498

Moving on to step 8:
498 goes into 2937 5 times with a remainder of 447.
Record the quotient 5 as the next digit in the result. 
Result so far: 57035.0
If we take 2490 away from 2937, we end up with 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

On to step 9:
4470 divided by 498 is 8 with a remainder of 486.
Use 8 as the next digit of our solution. 
Result so far: 57035.8
Subtracting 3984 from 4470 leaves us with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 10:
4860 divided by 498 is 9 with a remainder of 378.
The number 9 becomes the next digit in our result. 
Result so far: 57035.89
Subtract 4482 from 4860 to get 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Advancing to step 11:
When dividing 3780 by 498, we get 7 with a remainder of 294.
Write down 7 as next digit of the result. 
Result so far: 57035.897
The remainder is 294 after subtracting 3486 from 3780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 12:
2940 divided by 498 is 5 with a remainder of 450.
Record the quotient 5 as the next digit in the result. 
Result so far: 57035.8975
Subtracting 2490 from 2940 leaves us with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 13:
4500 divided by 498 is 9 with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 57035.89759
The remainder is 18 after subtracting 4482 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 14:
498 can be fit into 180 0 times, resulting in a remainder of 180.
The number 0 becomes the next digit in our result. 
Result so far: 57035.89759
Deduct 0 from 180 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 15:
1800 divided by 498 is 3 with a remainder of 306.
Put 3 as the next digit of the answer. 
Result so far: 57035.8975903
Subtract 1494 from 1800 to get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Advancing to step 16:
498 goes into 3060 6 times with a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 57035.89759036
Subtracting 2988 from 3060 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 57035.89759036 with a remainder of 7.2e-08.