93404089 divided by 243 
The aim is to understand the frequency of 243 in 93404089.

Moving on to step 1:
If we divide 9 by 243, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 243

Moving on to step 2:
When dividing 93 by 243, we get 0 with a remainder of 93.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 93 leaves us with 93.
Include the next digit (4) from the dividend after 93, then repeat: 934 / 243

Going ahead to step 3:
243 can be fit into 934 3 times, resulting in a remainder of 205.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 729 from 934 and we're left with 205.
Fetch the next digit (0) from the dividend, attach it to 205 and continue: 2050 / 243

Advancing to step 4:
When dividing 2050 by 243, we get 8 with a remainder of 106.
The next digit of our result is 8. 
Result so far: 38.0
Subtract 1944 from 2050 to get 106.
Include the next digit (4) from the dividend after 106, then repeat: 1064 / 243

Going ahead to step 5:
If we divide 1064 by 243, we get 4 and a remainder of 92.
Use 4 as the next digit of our solution. 
Result so far: 384.0
Subtract 972 from 1064 to get 92.
Fetch the next digit (0) from the dividend, attach it to 92 and continue: 920 / 243

On to step 6:
243 goes into 920 3 times with a remainder of 191.
Write down 3 as next digit of the result. 
Result so far: 3843.0
If we take 729 away from 920, we end up with 191.
Append the next digit (8) from the dividend to 191 and continue with: 1918 / 243

Step 7:
243 can be fit into 1918 7 times, resulting in a remainder of 217.
Use 7 as the next digit of our solution. 
Result so far: 38437.0
Deduct 1701 from 1918 and we're left with 217.
Grab the next digit (9) from the dividend, add it to 217, then carry on: 2179 / 243

On to step 8:
The number 243 fits into 2179 8 times, leaving a remainder of 235.
Record the quotient 8 as the next digit in the result. 
Result so far: 384378.0
Subtract 1944 from 2179 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

On to step 9:
If we divide 2350 by 243, we get 9 and a remainder of 163.
Write down 9 as next digit of the result. 
Result so far: 384378.9
The remainder is 163 after subtracting 2187 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Step 10:
The number 243 fits into 1630 6 times, leaving a remainder of 172.
Write down 6 as next digit of the result. 
Result so far: 384378.96
Deduct 1458 from 1630 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Advancing to step 11:
243 can be fit into 1720 7 times, resulting in a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 384378.967
Subtract 1701 from 1720 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 12:
If we divide 190 by 243, we get 0 and a remainder of 190.
The next digit of our result is 0. 
Result so far: 384378.967
The remainder is 190 after subtracting 0 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 13:
When dividing 1900 by 243, we get 7 with a remainder of 199.
Put 7 as the next digit of the answer. 
Result so far: 384378.96707
The remainder is 199 after subtracting 1701 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Going ahead to step 14:
The number 243 fits into 1990 8 times, leaving a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 384378.967078
If we subtract 1944 from 1990, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 15:
When dividing 460 by 243, we get 1 with a remainder of 217.
The number 1 becomes the next digit in our result. 
Result so far: 384378.9670781
If we take 243 away from 460, we end up with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Advancing to step 16:
When dividing 2170 by 243, we get 8 with a remainder of 226.
Use 8 as the next digit of our solution. 
Result so far: 384378.96707818
Subtracting 1944 from 2170 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

The final outcome is 384378.96707818, with a leftover of 2.26e-07.