We look at the division of 109391 by 143 
The aim is to understand the frequency of 143 in 109391.

Step 1:
If we divide 1 by 143, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 143

Step 2:
143 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 10 leaves us with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 143

Advancing to step 3:
143 can be fit into 109 0 times, resulting in a remainder of 109.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 109 to get 109.
Bring next digit (3) of the dividend behind the 109 and repeat the process: 1093 / 143

Let's proceed to step 4:
The number 143 fits into 1093 7 times, leaving a remainder of 92.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 1001 from 1093, we get 92.
Fetch the next digit (9) from the dividend, attach it to 92 and continue: 929 / 143

Let's proceed to step 5:
143 goes into 929 6 times with a remainder of 71.
The next digit of our result is 6. 
Result so far: 76.0
Subtracting 858 from 929 leaves us with 71.
Bring next digit (1) of the dividend behind the 71 and repeat the process: 711 / 143

Step 6:
143 goes into 711 4 times with a remainder of 139.
Put 4 as the next digit of the answer. 
Result so far: 764.0
If we subtract 572 from 711, we get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Moving on to step 7:
If we divide 1390 by 143, we get 9 and a remainder of 103.
Put 9 as the next digit of the answer. 
Result so far: 764.9
The remainder is 103 after subtracting 1287 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 8:
143 can be fit into 1030 7 times, resulting in a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 764.97
If we take 1001 away from 1030, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 9:
When dividing 290 by 143, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 764.972
Subtracting 286 from 290 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
143 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 764.972
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
143 can be fit into 400 2 times, resulting in a remainder of 114.
Write down 2 as next digit of the result. 
Result so far: 764.97202
Subtracting 286 from 400 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Moving on to step 12:
The number 143 fits into 1140 7 times, leaving a remainder of 139.
Use 7 as the next digit of our solution. 
Result so far: 764.972027
If we take 1001 away from 1140, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Let's proceed to step 13:
When dividing 1390 by 143, we get 9 with a remainder of 103.
The number 9 becomes the next digit in our result. 
Result so far: 764.9720279
The remainder is 103 after subtracting 1287 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Step 14:
1030 divided by 143 is 7 with a remainder of 29.
The next digit of our result is 7. 
Result so far: 764.97202797
If we take 1001 away from 1030, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

In conclusion, the division gives 764.97202797 with a balance of 2.9e-08.