We're dividing 40228425 by 143 
The aim is to understand the frequency of 143 in 40228425.

Going ahead to step 1:
4 divided by 143 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 143

Step 2:
143 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 143

Advancing to step 3:
143 goes into 402 2 times with a remainder of 116.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 286 from 402, we get 116.
Bring next digit (2) of the dividend behind the 116 and repeat the process: 1162 / 143

On to step 4:
The number 143 fits into 1162 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 28.0
If we take 1144 away from 1162, we end up with 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 143

Step 5:
The number 143 fits into 188 1 times, leaving a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 281.0
Deduct 143 from 188 and we're left with 45.
Bring next digit (4) of the dividend behind the 45 and repeat the process: 454 / 143

Step 6:
143 goes into 454 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 2813.0
If we take 429 away from 454, we end up with 25.
Fetch the next digit (2) from the dividend, attach it to 25 and continue: 252 / 143

On to step 7:
252 divided by 143 is 1 with a remainder of 109.
Write down 1 as next digit of the result. 
Result so far: 28131.0
If we subtract 143 from 252, we get 109.
Append the next digit (5) from the dividend to 109 and continue with: 1095 / 143

Let's proceed to step 8:
143 goes into 1095 7 times with a remainder of 94.
Use 7 as the next digit of our solution. 
Result so far: 281317.0
The remainder is 94 after subtracting 1001 from 1095.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 9:
If we divide 940 by 143, we get 6 and a remainder of 82.
Use 6 as the next digit of our solution. 
Result so far: 281317.6
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.

Advancing to step 10:
820 divided by 143 is 5 with a remainder of 105.
Use 5 as the next digit of our solution. 
Result so far: 281317.65
If we take 715 away from 820, we end up with 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 11:
When dividing 1050 by 143, we get 7 with a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 281317.657
Subtracting 1001 from 1050 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 12:
The number 143 fits into 490 3 times, leaving a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 281317.6573
If we take 429 away from 490, we end up with 61.
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 13:
When dividing 610 by 143, we get 4 with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 281317.65734
If we subtract 572 from 610, we 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.

Advancing to step 14:
The number 143 fits into 380 2 times, leaving a remainder of 94.
Put 2 as the next digit of the answer. 
Result so far: 281317.657342
If we take 286 away from 380, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 15:
If we divide 940 by 143, we get 6 and a remainder of 82.
The number 6 becomes the next digit in our result. 
Result so far: 281317.6573426
Subtract 858 from 940 to 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.

Step 16:
820 divided by 143 is 5 with a remainder of 105.
Use 5 as the next digit of our solution. 
Result so far: 281317.65734265
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.

The final outcome is 281317.65734265, with a leftover of 1.05e-07.