We look at the division of 510933 by 71 
The aim is to understand the frequency of 71 in 510933.

Going ahead to step 1:
5 divided by 71 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 71

Advancing to step 2:
If we divide 51 by 71, we get 0 and a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Grab the next digit (0) from the dividend, add it to 51, then carry on: 510 / 71

Let's proceed to step 3:
If we divide 510 by 71, we get 7 and a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 497 from 510 to get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 71

Moving on to step 4:
The number 71 fits into 139 1 times, leaving a remainder of 68.
Put 1 as the next digit of the answer. 
Result so far: 71.0
Subtract 71 from 139 to get 68.
Grab the next digit (3) from the dividend, add it to 68, then carry on: 683 / 71

Let's proceed to step 5:
If we divide 683 by 71, we get 9 and a remainder of 44.
The next digit of our result is 9. 
Result so far: 719.0
Deduct 639 from 683 and we're left with 44.
Grab the next digit (3) from the dividend, add it to 44, then carry on: 443 / 71

Going ahead to step 6:
71 goes into 443 6 times with a remainder of 17.
Record the quotient 6 as the next digit in the result. 
Result so far: 7196.0
If we subtract 426 from 443, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
The number 71 fits into 170 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 7196.2
Subtract 142 from 170 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 8:
71 goes into 280 3 times with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 7196.23
If we subtract 213 from 280, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 9:
670 divided by 71 is 9 with a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 7196.239
If we take 639 away from 670, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 10:
71 goes into 310 4 times with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 7196.2394
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.

Advancing to step 11:
When dividing 260 by 71, we get 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 7196.23943
Deduct 213 from 260 and we're left with 47.
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 12:
When dividing 470 by 71, we get 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 7196.239436
If we subtract 426 from 470, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 13:
71 goes into 440 6 times with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 7196.2394366
The remainder is 14 after subtracting 426 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 7196.2394366 and a remainder of 1.4e-07.