We're dividing 143066 by 55 
The aim is to understand the frequency of 55 in 143066.

On to step 1:
When dividing 1 by 55, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 55

Going ahead to step 2:
14 divided by 55 is 0 with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 55

Going ahead to step 3:
The number 55 fits into 143 2 times, leaving a remainder of 33.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 110 from 143 and we're left with 33.
Grab the next digit (0) from the dividend, add it to 33, then carry on: 330 / 55

Advancing to step 4:
If we divide 330 by 55, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we subtract 330 from 330, we get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 55

On to step 5:
When dividing 6 by 55, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 260.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 55

Let's proceed to step 6:
55 can be fit into 66 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 2601.0
If we take 55 away from 66, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
The number 55 fits into 110 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 2601.2
Subtract 110 from 110 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 55, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2601.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
If we divide 0 by 55, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2601.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 2601.2 with a remainder of 0.0.