We look at the division of 79947288 by 491 
The aim is to understand the frequency of 491 in 79947288.

On to step 1:
491 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 491

Moving on to step 2:
When dividing 79 by 491, we get 0 with a remainder of 79.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Take the next digit (9) from the dividend and append it to 79, then repeat: 799 / 491

Moving on to step 3:
The number 491 fits into 799 1 times, leaving a remainder of 308.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 491 from 799, we get 308.
Include the next digit (4) from the dividend after 308, then repeat: 3084 / 491

Step 4:
If we divide 3084 by 491, we get 6 and a remainder of 138.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Deduct 2946 from 3084 and we're left with 138.
Take the next digit (7) from the dividend and append it to 138, then repeat: 1387 / 491

On to step 5:
When dividing 1387 by 491, we get 2 with a remainder of 405.
The number 2 becomes the next digit in our result. 
Result so far: 162.0
Deduct 982 from 1387 and we're left with 405.
Fetch the next digit (2) from the dividend, attach it to 405 and continue: 4052 / 491

Moving on to step 6:
If we divide 4052 by 491, we get 8 and a remainder of 124.
Write down 8 as next digit of the result. 
Result so far: 1628.0
If we take 3928 away from 4052, we end up with 124.
Include the next digit (8) from the dividend after 124, then repeat: 1248 / 491

On to step 7:
The number 491 fits into 1248 2 times, leaving a remainder of 266.
The next digit of our result is 2. 
Result so far: 16282.0
If we take 982 away from 1248, we end up with 266.
Bring next digit (8) of the dividend behind the 266 and repeat the process: 2668 / 491

Advancing to step 8:
When dividing 2668 by 491, we get 5 with a remainder of 213.
The next digit of our result is 5. 
Result so far: 162825.0
If we subtract 2455 from 2668, we get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Let's proceed to step 9:
2130 divided by 491 is 4 with a remainder of 166.
The number 4 becomes the next digit in our result. 
Result so far: 162825.4
If we take 1964 away from 2130, we end up with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 10:
1660 divided by 491 is 3 with a remainder of 187.
The number 3 becomes the next digit in our result. 
Result so far: 162825.43
Subtracting 1473 from 1660 leaves us with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Step 11:
When dividing 1870 by 491, we get 3 with a remainder of 397.
Write down 3 as next digit of the result. 
Result so far: 162825.433
Subtracting 1473 from 1870 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Our division results in 162825.433 with a remaining 0.0397.