We look at the division of 35056980 by 491 
The aim is to understand the frequency of 491 in 35056980.

Advancing to step 1:
3 divided by 491 is 0 with 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.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 491

Going ahead to step 2:
491 goes into 35 0 times with a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 35, we end up with 35.
Fetch the next digit (0) from the dividend, attach it to 35 and continue: 350 / 491

Going ahead to step 3:
491 goes into 350 0 times with a remainder of 350.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 350, we end up with 350.
Take the next digit (5) from the dividend and append it to 350, then repeat: 3505 / 491

Going ahead to step 4:
If we divide 3505 by 491, we get 7 and a remainder of 68.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 3437 from 3505 leaves us with 68.
Include the next digit (6) from the dividend after 68, then repeat: 686 / 491

Advancing to step 5:
If we divide 686 by 491, we get 1 and a remainder of 195.
Put 1 as the next digit of the answer. 
Result so far: 71.0
If we take 491 away from 686, we end up with 195.
Grab the next digit (9) from the dividend, add it to 195, then carry on: 1959 / 491

Moving on to step 6:
If we divide 1959 by 491, we get 3 and a remainder of 486.
Put 3 as the next digit of the answer. 
Result so far: 713.0
Deduct 1473 from 1959 and we're left with 486.
Grab the next digit (8) from the dividend, add it to 486, then carry on: 4868 / 491

On to step 7:
The number 491 fits into 4868 9 times, leaving a remainder of 449.
Use 9 as the next digit of our solution. 
Result so far: 7139.0
Subtract 4419 from 4868 to get 449.
Append the next digit (0) from the dividend to 449 and continue with: 4490 / 491

Step 8:
491 can be fit into 4490 9 times, resulting in a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 71399.0
Deduct 4419 from 4490 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 9:
491 goes into 710 1 times with a remainder of 219.
Write down 1 as next digit of the result. 
Result so far: 71399.1
Deduct 491 from 710 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Moving on to step 10:
491 can be fit into 2190 4 times, resulting in a remainder of 226.
The number 4 becomes the next digit in our result. 
Result so far: 71399.14
Subtracting 1964 from 2190 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 11:
491 can be fit into 2260 4 times, resulting in a remainder of 296.
The number 4 becomes the next digit in our result. 
Result so far: 71399.144
The remainder is 296 after subtracting 1964 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

The final result is 71399.144 with a remainder of 0.0296.