We look at the division of 28647581 by 491 
The aim is to understand the frequency of 491 in 28647581.

Advancing to step 1:
When dividing 2 by 491, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 491

Advancing to step 2:
491 goes into 28 0 times with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 491

Moving on to step 3:
491 goes into 286 0 times with a remainder of 286.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 286 leaves us with 286.
Include the next digit (4) from the dividend after 286, then repeat: 2864 / 491

Advancing to step 4:
491 goes into 2864 5 times with a remainder of 409.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 2455 from 2864, we get 409.
Include the next digit (7) from the dividend after 409, then repeat: 4097 / 491

On to step 5:
491 can be fit into 4097 8 times, resulting in a remainder of 169.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtracting 3928 from 4097 leaves us with 169.
Bring next digit (5) of the dividend behind the 169 and repeat the process: 1695 / 491

Step 6:
491 can be fit into 1695 3 times, resulting in a remainder of 222.
The next digit of our result is 3. 
Result so far: 583.0
Subtracting 1473 from 1695 leaves us with 222.
Append the next digit (8) from the dividend to 222 and continue with: 2228 / 491

Advancing to step 7:
491 can be fit into 2228 4 times, resulting in a remainder of 264.
The next digit of our result is 4. 
Result so far: 5834.0
Subtracting 1964 from 2228 leaves us with 264.
Fetch the next digit (1) from the dividend, attach it to 264 and continue: 2641 / 491

Going ahead to step 8:
When dividing 2641 by 491, we get 5 with a remainder of 186.
The next digit of our result is 5. 
Result so far: 58345.0
Deduct 2455 from 2641 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Going ahead to step 9:
491 goes into 1860 3 times with a remainder of 387.
Write down 3 as next digit of the result. 
Result so far: 58345.3
Subtract 1473 from 1860 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

On to step 10:
If we divide 3870 by 491, we get 7 and a remainder of 433.
Write down 7 as next digit of the result. 
Result so far: 58345.37
Subtract 3437 from 3870 to get 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Advancing to step 11:
The number 491 fits into 4330 8 times, leaving a remainder of 402.
Put 8 as the next digit of the answer. 
Result so far: 58345.378
Subtracting 3928 from 4330 leaves us with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Let's proceed to step 12:
When dividing 4020 by 491, we get 8 with a remainder of 92.
The next digit of our result is 8. 
Result so far: 58345.3788
If we take 3928 away from 4020, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

In conclusion, the division gives 58345.3788 with a balance of 0.00092.