243424 divided by 57 
The aim is to understand the frequency of 57 in 243424.

Moving on to step 1:
2 divided by 57 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 57

Moving on to step 2:
If we divide 24 by 57, we get 0 and a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 57

Moving on to step 3:
57 can be fit into 243 4 times, resulting in a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 15 after subtracting 228 from 243.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 57

On to step 4:
When dividing 154 by 57, we get 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
The remainder is 40 after subtracting 114 from 154.
Fetch the next digit (2) from the dividend, attach it to 40 and continue: 402 / 57

Advancing to step 5:
The number 57 fits into 402 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 427.0
If we take 399 away from 402, we end up with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 57

Moving on to step 6:
When dividing 34 by 57, we get 0 with a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 4270.0
The remainder is 34 after subtracting 0 from 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
57 goes into 340 5 times with a remainder of 55.
The next digit of our result is 5. 
Result so far: 4270.5
Subtract 285 from 340 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 8:
When dividing 550 by 57, we get 9 with a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 4270.59
Deduct 513 from 550 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 9:
When dividing 370 by 57, we get 6 with a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 4270.596
The remainder is 28 after subtracting 342 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
The number 57 fits into 280 4 times, leaving a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 4270.5964
Deduct 228 from 280 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 11:
57 can be fit into 520 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 4270.59649
If we take 513 away from 520, we end up 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.

Let's proceed to step 12:
When dividing 70 by 57, we get 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 4270.596491
Subtract 57 from 70 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 13:
The number 57 fits into 130 2 times, leaving a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 4270.5964912
Subtract 114 from 130 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.

Going ahead to step 14:
57 goes into 160 2 times with a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 4270.59649122
If we subtract 114 from 160, 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.

After the division, we end up with 4270.59649122 and a remainder of 4.6e-08.