We look at the division of 504912 by 71 
The aim is to understand the frequency of 71 in 504912.

Going ahead to step 1:
71 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 71

Let's proceed to step 2:
71 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 50, we end up with 50.
Include the next digit (4) from the dividend after 50, then repeat: 504 / 71

Moving on to step 3:
71 can be fit into 504 7 times, resulting in a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 497 from 504, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 71

Moving on to step 4:
If we divide 79 by 71, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 71.0
Deduct 71 from 79 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 71

Moving on to step 5:
When dividing 81 by 71, we get 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 711.0
If we subtract 71 from 81, we get 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 71

Advancing to step 6:
71 goes into 102 1 times with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 7111.0
The remainder is 31 after subtracting 71 from 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 7:
310 divided by 71 is 4 with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 7111.4
Subtract 284 from 310 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
260 divided by 71 is 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 7111.43
The remainder is 47 after subtracting 213 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 9:
The number 71 fits into 470 6 times, leaving a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 7111.436
The remainder is 44 after subtracting 426 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 10:
The number 71 fits into 440 6 times, leaving a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 7111.4366
Subtracting 426 from 440 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 7111.4366, with a leftover of 0.00014.