We look at the division of 61128872 by 549 
The aim is to understand the frequency of 549 in 61128872.

Going ahead to step 1:
If we divide 6 by 549, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 549

Advancing to step 2:
61 divided by 549 is 0 with a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 61 after subtracting 0 from 61.
Take the next digit (1) from the dividend and append it to 61, then repeat: 611 / 549

On to step 3:
549 goes into 611 1 times with a remainder of 62.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 62 after subtracting 549 from 611.
Bring next digit (2) of the dividend behind the 62 and repeat the process: 622 / 549

Going ahead to step 4:
When dividing 622 by 549, we get 1 with a remainder of 73.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 549 from 622 leaves us with 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 549

Step 5:
If we divide 738 by 549, we get 1 and a remainder of 189.
Use 1 as the next digit of our solution. 
Result so far: 111.0
Subtracting 549 from 738 leaves us with 189.
Append the next digit (8) from the dividend to 189 and continue with: 1898 / 549

Let's proceed to step 6:
549 goes into 1898 3 times with a remainder of 251.
The next digit of our result is 3. 
Result so far: 1113.0
Deduct 1647 from 1898 and we're left with 251.
Append the next digit (7) from the dividend to 251 and continue with: 2517 / 549

Moving on to step 7:
549 can be fit into 2517 4 times, resulting in a remainder of 321.
Record the quotient 4 as the next digit in the result. 
Result so far: 11134.0
Deduct 2196 from 2517 and we're left with 321.
Take the next digit (2) from the dividend and append it to 321, then repeat: 3212 / 549

Let's proceed to step 8:
When dividing 3212 by 549, we get 5 with a remainder of 467.
Record the quotient 5 as the next digit in the result. 
Result so far: 111345.0
Subtracting 2745 from 3212 leaves us with 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Advancing to step 9:
549 can be fit into 4670 8 times, resulting in a remainder of 278.
Use 8 as the next digit of our solution. 
Result so far: 111345.8
Subtract 4392 from 4670 to get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Going ahead to step 10:
549 can be fit into 2780 5 times, resulting in a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 111345.85
Subtracting 2745 from 2780 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 11:
549 goes into 350 0 times with a remainder of 350.
Put 0 as the next digit of the answer. 
Result so far: 111345.85
Deduct 0 from 350 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 12:
If we divide 3500 by 549, we get 6 and a remainder of 206.
Record the quotient 6 as the next digit in the result. 
Result so far: 111345.8506
Subtracting 3294 from 3500 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

On to step 13:
If we divide 2060 by 549, we get 3 and a remainder of 413.
Write down 3 as next digit of the result. 
Result so far: 111345.85063
Subtract 1647 from 2060 to get 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Advancing to step 14:
When dividing 4130 by 549, we get 7 with a remainder of 287.
Record the quotient 7 as the next digit in the result. 
Result so far: 111345.850637
Subtracting 3843 from 4130 leaves us with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

On to step 15:
549 goes into 2870 5 times with a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 111345.8506375
Deduct 2745 from 2870 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 16:
1250 divided by 549 is 2 with a remainder of 152.
Record the quotient 2 as the next digit in the result. 
Result so far: 111345.85063752
The remainder is 152 after subtracting 1098 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Our division results in 111345.85063752 with a remaining 1.52e-07.