Let's divide 252408 by 71
The aim is to understand the frequency of 71 in 252408.

Step 1:
71 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 71

Let's proceed to step 2:
The number 71 fits into 25 0 times, leaving a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 71

On to step 3:
252 divided by 71 is 3 with a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 213 from 252 leaves us with 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 71

Step 4:
71 goes into 394 5 times with a remainder of 39.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Subtract 355 from 394 to get 39.
Bring next digit (0) of the dividend behind the 39 and repeat the process: 390 / 71

Advancing to step 5:
The number 71 fits into 390 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 355.0
If we take 355 away from 390, we end up with 35.
Bring next digit (8) of the dividend behind the 35 and repeat the process: 358 / 71

Going ahead to step 6:
The number 71 fits into 358 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 3555.0
Subtracting 355 from 358 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
71 can be fit into 30 0 times, resulting in a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 3555.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
71 can be fit into 300 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 3555.04
If we subtract 284 from 300, we 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.

Advancing to step 9:
If we divide 160 by 71, we get 2 and a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 3555.042
Subtracting 142 from 160 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
180 divided by 71 is 2 with a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 3555.0422
Subtracting 142 from 180 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 3555.0422 with a remainder of 0.00038.