Let's divide 63940840 by 243
The aim is to understand the frequency of 243 in 63940840.

Moving on to step 1:
243 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 243

Moving on to step 2:
243 can be fit into 63 0 times, resulting in a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 243

Let's proceed to step 3:
When dividing 639 by 243, we get 2 with a remainder of 153.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 486 from 639 and we're left with 153.
Bring next digit (4) of the dividend behind the 153 and repeat the process: 1534 / 243

Step 4:
When dividing 1534 by 243, we get 6 with a remainder of 76.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we take 1458 away from 1534, we end up with 76.
Fetch the next digit (0) from the dividend, attach it to 76 and continue: 760 / 243

Going ahead to step 5:
When dividing 760 by 243, we get 3 with a remainder of 31.
The next digit of our result is 3. 
Result so far: 263.0
Deduct 729 from 760 and we're left with 31.
Take the next digit (8) from the dividend and append it to 31, then repeat: 318 / 243

Advancing to step 6:
318 divided by 243 is 1 with a remainder of 75.
Record the quotient 1 as the next digit in the result. 
Result so far: 2631.0
Deduct 243 from 318 and we're left with 75.
Take the next digit (4) from the dividend and append it to 75, then repeat: 754 / 243

Let's proceed to step 7:
243 goes into 754 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 26313.0
Subtracting 729 from 754 leaves us with 25.
Append the next digit (0) from the dividend to 25 and continue with: 250 / 243

Going ahead to step 8:
243 goes into 250 1 times with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 263131.0
If we subtract 243 from 250, 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.

Step 9:
If we divide 70 by 243, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 263131.0
Subtract 0 from 70 to 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.

Advancing to step 10:
700 divided by 243 is 2 with a remainder of 214.
Put 2 as the next digit of the answer. 
Result so far: 263131.02
If we take 486 away from 700, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Moving on to step 11:
When dividing 2140 by 243, we get 8 with a remainder of 196.
Record the quotient 8 as the next digit in the result. 
Result so far: 263131.028
If we take 1944 away from 2140, we end up with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 12:
243 can be fit into 1960 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 263131.0288
Subtract 1944 from 1960 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 263131.0288, with a leftover of 0.00016.