251270 divided by 71 
The aim is to understand the frequency of 71 in 251270.

Step 1:
2 divided by 71 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 71

On to step 2:
When dividing 25 by 71, we get 0 with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 71

Let's proceed to step 3:
The number 71 fits into 251 3 times, leaving a remainder of 38.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 38 after subtracting 213 from 251.
Include the next digit (2) from the dividend after 38, then repeat: 382 / 71

Let's proceed to step 4:
382 divided by 71 is 5 with a remainder of 27.
Use 5 as the next digit of our solution. 
Result so far: 35.0
The remainder is 27 after subtracting 355 from 382.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 71

Advancing to step 5:
When dividing 277 by 71, we get 3 with a remainder of 64.
Record the quotient 3 as the next digit in the result. 
Result so far: 353.0
Subtracting 213 from 277 leaves us with 64.
Include the next digit (0) from the dividend after 64, then repeat: 640 / 71

On to step 6:
When dividing 640 by 71, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 3539.0
Deduct 639 from 640 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
71 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 3539.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
71 can be fit into 100 1 times, resulting in a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 3539.01
Subtracting 71 from 100 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
71 can be fit into 290 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 3539.014
If we take 284 away from 290, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
The number 71 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 3539.014
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 11:
600 divided by 71 is 8 with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 3539.01408
Subtract 568 from 600 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 12:
When dividing 320 by 71, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 3539.014084
Subtract 284 from 320 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 13:
360 divided by 71 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3539.0140845
If we take 355 away from 360, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 14:
If we divide 50 by 71, we get 0 and a remainder of 50.
The next digit of our result is 0. 
Result so far: 3539.0140845
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 3539.0140845 and a remainder of 5e-08.