We divide 31166074 by 243
The aim is to understand the frequency of 243 in 31166074.

Step 1:
3 divided by 243 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 243

Going ahead to step 2:
When dividing 31 by 243, we get 0 with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 243

Moving on to step 3:
The number 243 fits into 311 1 times, leaving a remainder of 68.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 68 after subtracting 243 from 311.
Take the next digit (6) from the dividend and append it to 68, then repeat: 686 / 243

Moving on to step 4:
If we divide 686 by 243, we get 2 and a remainder of 200.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 486 from 686, we get 200.
Fetch the next digit (6) from the dividend, attach it to 200 and continue: 2006 / 243

Advancing to step 5:
The number 243 fits into 2006 8 times, leaving a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 128.0
If we subtract 1944 from 2006, we get 62.
Take the next digit (0) from the dividend and append it to 62, then repeat: 620 / 243

Moving on to step 6:
243 goes into 620 2 times with a remainder of 134.
The next digit of our result is 2. 
Result so far: 1282.0
If we take 486 away from 620, we end up with 134.
Fetch the next digit (7) from the dividend, attach it to 134 and continue: 1347 / 243

Let's proceed to step 7:
The number 243 fits into 1347 5 times, leaving a remainder of 132.
Write down 5 as next digit of the result. 
Result so far: 12825.0
Deduct 1215 from 1347 and we're left with 132.
Include the next digit (4) from the dividend after 132, then repeat: 1324 / 243

Step 8:
When dividing 1324 by 243, we get 5 with a remainder of 109.
Write down 5 as next digit of the result. 
Result so far: 128255.0
Subtract 1215 from 1324 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 9:
If we divide 1090 by 243, we get 4 and a remainder of 118.
The next digit of our result is 4. 
Result so far: 128255.4
Subtracting 972 from 1090 leaves us with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 10:
243 can be fit into 1180 4 times, resulting in a remainder of 208.
Use 4 as the next digit of our solution. 
Result so far: 128255.44
Subtracting 972 from 1180 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

After the division, we end up with 128255.44 and a remainder of 0.208.