Let's divide 81103203 by 143
The aim is to understand the frequency of 143 in 81103203.

Going ahead to step 1:
143 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 143

Advancing to step 2:
When dividing 81 by 143, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Take the next digit (1) from the dividend and append it to 81, then repeat: 811 / 143

Step 3:
If we divide 811 by 143, we get 5 and a remainder of 96.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 715 from 811 to get 96.
Append the next digit (0) from the dividend to 96 and continue with: 960 / 143

Let's proceed to step 4:
When dividing 960 by 143, we get 6 with a remainder of 102.
The next digit of our result is 6. 
Result so far: 56.0
Subtracting 858 from 960 leaves us with 102.
Fetch the next digit (3) from the dividend, attach it to 102 and continue: 1023 / 143

Step 5:
1023 divided by 143 is 7 with a remainder of 22.
The next digit of our result is 7. 
Result so far: 567.0
If we subtract 1001 from 1023, we get 22.
Take the next digit (2) from the dividend and append it to 22, then repeat: 222 / 143

Going ahead to step 6:
222 divided by 143 is 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 5671.0
If we subtract 143 from 222, we get 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 143

Moving on to step 7:
When dividing 790 by 143, we get 5 with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 56715.0
If we subtract 715 from 790, we get 75.
Fetch the next digit (3) from the dividend, attach it to 75 and continue: 753 / 143

Let's proceed to step 8:
When dividing 753 by 143, we get 5 with a remainder of 38.
Put 5 as the next digit of the answer. 
Result so far: 567155.0
Subtracting 715 from 753 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 9:
The number 143 fits into 380 2 times, leaving a remainder of 94.
The number 2 becomes the next digit in our result. 
Result so far: 567155.2
If we subtract 286 from 380, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 10:
When dividing 940 by 143, we get 6 with a remainder of 82.
Use 6 as the next digit of our solution. 
Result so far: 567155.26
Deduct 858 from 940 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 11:
When dividing 820 by 143, we get 5 with a remainder of 105.
The number 5 becomes the next digit in our result. 
Result so far: 567155.265
If we subtract 715 from 820, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 12:
143 can be fit into 1050 7 times, resulting in a remainder of 49.
The number 7 becomes the next digit in our result. 
Result so far: 567155.2657
Subtract 1001 from 1050 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 13:
If we divide 490 by 143, we get 3 and a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 567155.26573
The remainder is 61 after subtracting 429 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 14:
143 goes into 610 4 times with a remainder of 38.
The next digit of our result is 4. 
Result so far: 567155.265734
Subtract 572 from 610 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 15:
143 goes into 380 2 times with a remainder of 94.
Write down 2 as next digit of the result. 
Result so far: 567155.2657342
The remainder is 94 after subtracting 286 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 16:
940 divided by 143 is 6 with a remainder of 82.
The next digit of our result is 6. 
Result so far: 567155.26573426
If we subtract 858 from 940, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 567155.26573426 with a remainder of 8.2e-08.