21171334 ÷ 549 
The aim is to understand the frequency of 549 in 21171334.

On to step 1:
When dividing 2 by 549, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 549

Let's proceed to step 2:
If we divide 21 by 549, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 549

On to step 3:
If we divide 211 by 549, we get 0 and a remainder of 211.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 211, we end up with 211.
Bring next digit (7) of the dividend behind the 211 and repeat the process: 2117 / 549

Advancing to step 4:
549 goes into 2117 3 times with a remainder of 470.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 1647 from 2117, we get 470.
Fetch the next digit (1) from the dividend, attach it to 470 and continue: 4701 / 549

Advancing to step 5:
549 goes into 4701 8 times with a remainder of 309.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtracting 4392 from 4701 leaves us with 309.
Fetch the next digit (3) from the dividend, attach it to 309 and continue: 3093 / 549

Going ahead to step 6:
3093 divided by 549 is 5 with a remainder of 348.
Use 5 as the next digit of our solution. 
Result so far: 385.0
Deduct 2745 from 3093 and we're left with 348.
Append the next digit (3) from the dividend to 348 and continue with: 3483 / 549

On to step 7:
3483 divided by 549 is 6 with a remainder of 189.
Record the quotient 6 as the next digit in the result. 
Result so far: 3856.0
The remainder is 189 after subtracting 3294 from 3483.
Bring next digit (4) of the dividend behind the 189 and repeat the process: 1894 / 549

Let's proceed to step 8:
If we divide 1894 by 549, we get 3 and a remainder of 247.
Record the quotient 3 as the next digit in the result. 
Result so far: 38563.0
Deduct 1647 from 1894 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 9:
2470 divided by 549 is 4 with a remainder of 274.
Record the quotient 4 as the next digit in the result. 
Result so far: 38563.4
Subtracting 2196 from 2470 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 10:
The number 549 fits into 2740 4 times, leaving a remainder of 544.
The next digit of our result is 4. 
Result so far: 38563.44
If we take 2196 away from 2740, we end up with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

The final outcome is 38563.44, with a leftover of 0.544.