We look at the division of 33109087 by 143 
The aim is to understand the frequency of 143 in 33109087.

Moving on to step 1:
The number 143 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 143

Moving on to step 2:
143 can be fit into 33 0 times, resulting in a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Append the next digit (1) from the dividend to 33 and continue with: 331 / 143

Going ahead to step 3:
If we divide 331 by 143, we get 2 and a remainder of 45.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 286 from 331 and we're left with 45.
Fetch the next digit (0) from the dividend, attach it to 45 and continue: 450 / 143

Moving on to step 4:
When dividing 450 by 143, we get 3 with a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtract 429 from 450 to get 21.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 143

Step 5:
The number 143 fits into 219 1 times, leaving a remainder of 76.
The next digit of our result is 1. 
Result so far: 231.0
Subtracting 143 from 219 leaves us with 76.
Grab the next digit (0) from the dividend, add it to 76, then carry on: 760 / 143

Going ahead to step 6:
143 goes into 760 5 times with a remainder of 45.
The next digit of our result is 5. 
Result so far: 2315.0
If we subtract 715 from 760, we get 45.
Take the next digit (8) from the dividend and append it to 45, then repeat: 458 / 143

On to step 7:
143 can be fit into 458 3 times, resulting in a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 23153.0
Deduct 429 from 458 and we're left with 29.
Include the next digit (7) from the dividend after 29, then repeat: 297 / 143

Going ahead to step 8:
When dividing 297 by 143, we get 2 with a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 231532.0
Subtract 286 from 297 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
143 goes into 110 0 times with a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 231532.0
If we take 0 away from 110, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
When dividing 1100 by 143, we get 7 with a remainder of 99.
Record the quotient 7 as the next digit in the result. 
Result so far: 231532.07
Subtracting 1001 from 1100 leaves us with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 11:
The number 143 fits into 990 6 times, leaving a remainder of 132.
Put 6 as the next digit of the answer. 
Result so far: 231532.076
Subtract 858 from 990 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 12:
1320 divided by 143 is 9 with a remainder of 33.
The next digit of our result is 9. 
Result so far: 231532.0769
The remainder is 33 after subtracting 1287 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
143 can be fit into 330 2 times, resulting in a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 231532.07692
If we subtract 286 from 330, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
143 goes into 440 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 231532.076923
Subtracting 429 from 440 leaves us 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.

Let's proceed to step 15:
143 goes into 110 0 times with a remainder of 110.
The number 0 becomes the next digit in our result. 
Result so far: 231532.076923
Subtracting 0 from 110 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 16:
When dividing 1100 by 143, we get 7 with a remainder of 99.
Record the quotient 7 as the next digit in the result. 
Result so far: 231532.07692307
Subtracting 1001 from 1100 leaves us with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Our division results in 231532.07692307 with a remaining 9.9e-08.