We look at the division of 623137 by 71 
The aim is to understand the frequency of 71 in 623137.

Going ahead to step 1:
The number 71 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 71

Moving on to step 2:
The number 71 fits into 62 0 times, leaving a remainder of 62.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 71

Moving on to step 3:
The number 71 fits into 623 8 times, leaving a remainder of 55.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 568 from 623 leaves us with 55.
Include the next digit (1) from the dividend after 55, then repeat: 551 / 71

Going ahead to step 4:
71 can be fit into 551 7 times, resulting in a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Subtract 497 from 551 to get 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 71

Advancing to step 5:
71 goes into 543 7 times with a remainder of 46.
Record the quotient 7 as the next digit in the result. 
Result so far: 877.0
Subtracting 497 from 543 leaves us with 46.
Append the next digit (7) from the dividend to 46 and continue with: 467 / 71

Step 6:
When dividing 467 by 71, we get 6 with a remainder of 41.
Record the quotient 6 as the next digit in the result. 
Result so far: 8776.0
Subtracting 426 from 467 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
71 goes into 410 5 times with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 8776.5
Deduct 355 from 410 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 8:
71 goes into 550 7 times with a remainder of 53.
Record the quotient 7 as the next digit in the result. 
Result so far: 8776.57
Subtract 497 from 550 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 9:
530 divided by 71 is 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 8776.577
Subtracting 497 from 530 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

The quotient of the division is 8776.577, and the remainder is 0.0033.