61881827 ÷ 143 
The aim is to understand the frequency of 143 in 61881827.

Moving on to step 1:
6 divided by 143 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 143

On to step 2:
When dividing 61 by 143, we get 0 with a remainder of 61.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 61, we get 61.
Bring next digit (8) of the dividend behind the 61 and repeat the process: 618 / 143

Going ahead to step 3:
When dividing 618 by 143, we get 4 with a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 572 from 618 leaves us with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 143

Advancing to step 4:
The number 143 fits into 468 3 times, leaving a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
The remainder is 39 after subtracting 429 from 468.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 143

On to step 5:
The number 143 fits into 391 2 times, leaving a remainder of 105.
The next digit of our result is 2. 
Result so far: 432.0
Deduct 286 from 391 and we're left with 105.
Append the next digit (8) from the dividend to 105 and continue with: 1058 / 143

Step 6:
143 goes into 1058 7 times with a remainder of 57.
The next digit of our result is 7. 
Result so far: 4327.0
Subtract 1001 from 1058 to get 57.
Bring next digit (2) of the dividend behind the 57 and repeat the process: 572 / 143

Let's proceed to step 7:
572 divided by 143 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 43274.0
Subtracting 572 from 572 leaves us with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 143

Let's proceed to step 8:
If we divide 7 by 143, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 432740.0
If we subtract 0 from 7, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
70 divided by 143 is 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 432740.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
143 can be fit into 700 4 times, resulting in a remainder of 128.
Write down 4 as next digit of the result. 
Result so far: 432740.04
If we take 572 away from 700, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 11:
The number 143 fits into 1280 8 times, leaving a remainder of 136.
Put 8 as the next digit of the answer. 
Result so far: 432740.048
Subtract 1144 from 1280 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 12:
When dividing 1360 by 143, we get 9 with a remainder of 73.
The number 9 becomes the next digit in our result. 
Result so far: 432740.0489
Subtracting 1287 from 1360 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 13:
The number 143 fits into 730 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 432740.04895
If we subtract 715 from 730, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 14:
When dividing 150 by 143, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 432740.048951
Subtracting 143 from 150 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 15:
The number 143 fits into 70 0 times, leaving a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 432740.048951
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 16:
The number 143 fits into 700 4 times, leaving a remainder of 128.
Use 4 as the next digit of our solution. 
Result so far: 432740.04895104
If we subtract 572 from 700, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The final result is 432740.04895104 with a remainder of 1.28e-07.