We look at the division of 13913100 by 549 
The aim is to understand the frequency of 549 in 13913100.

Going ahead to step 1:
549 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 549

Advancing to step 2:
549 can be fit into 13 0 times, resulting in a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 549

Advancing to step 3:
The number 549 fits into 139 0 times, leaving a remainder of 139.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 139 and we're left with 139.
Fetch the next digit (1) from the dividend, attach it to 139 and continue: 1391 / 549

Moving on to step 4:
When dividing 1391 by 549, we get 2 with a remainder of 293.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1098 from 1391 to get 293.
Grab the next digit (3) from the dividend, add it to 293, then carry on: 2933 / 549

Moving on to step 5:
2933 divided by 549 is 5 with a remainder of 188.
Use 5 as the next digit of our solution. 
Result so far: 25.0
The remainder is 188 after subtracting 2745 from 2933.
Grab the next digit (1) from the dividend, add it to 188, then carry on: 1881 / 549

Let's proceed to step 6:
549 goes into 1881 3 times with a remainder of 234.
Use 3 as the next digit of our solution. 
Result so far: 253.0
If we subtract 1647 from 1881, we get 234.
Bring next digit (0) of the dividend behind the 234 and repeat the process: 2340 / 549

Moving on to step 7:
When dividing 2340 by 549, we get 4 with a remainder of 144.
The number 4 becomes the next digit in our result. 
Result so far: 2534.0
If we subtract 2196 from 2340, we get 144.
Append the next digit (0) from the dividend to 144 and continue with: 1440 / 549

Advancing to step 8:
The number 549 fits into 1440 2 times, leaving a remainder of 342.
Record the quotient 2 as the next digit in the result. 
Result so far: 25342.0
If we subtract 1098 from 1440, we get 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Step 9:
549 goes into 3420 6 times with a remainder of 126.
Use 6 as the next digit of our solution. 
Result so far: 25342.6
If we take 3294 away from 3420, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 10:
549 can be fit into 1260 2 times, resulting in a remainder of 162.
Write down 2 as next digit of the result. 
Result so far: 25342.62
The remainder is 162 after subtracting 1098 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 11:
If we divide 1620 by 549, we get 2 and a remainder of 522.
Record the quotient 2 as the next digit in the result. 
Result so far: 25342.622
Subtract 1098 from 1620 to get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

After the division, we end up with 25342.622 and a remainder of 0.0522.