We're dividing 573650 by 71 
The aim is to understand the frequency of 71 in 573650.

Step 1:
When dividing 5 by 71, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 71

Let's proceed to step 2:
71 can be fit into 57 0 times, resulting in a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Take the next digit (3) from the dividend and append it to 57, then repeat: 573 / 71

Let's proceed to step 3:
71 goes into 573 8 times with a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 568 away from 573, we end up with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 71

Moving on to step 4:
The number 71 fits into 56 0 times, leaving a remainder of 56.
The next digit of our result is 0. 
Result so far: 80.0
The remainder is 56 after subtracting 0 from 56.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 71

Advancing to step 5:
If we divide 565 by 71, we get 7 and a remainder of 68.
The number 7 becomes the next digit in our result. 
Result so far: 807.0
If we take 497 away from 565, we end up with 68.
Fetch the next digit (0) from the dividend, attach it to 68 and continue: 680 / 71

Let's proceed to step 6:
71 goes into 680 9 times with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 8079.0
Subtracting 639 from 680 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.

On to step 7:
The number 71 fits into 410 5 times, leaving a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 8079.5
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.

Advancing to step 8:
71 can be fit into 550 7 times, resulting in a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 8079.57
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.

Advancing to step 9:
When dividing 530 by 71, we get 7 with a remainder of 33.
The next digit of our result is 7. 
Result so far: 8079.577
If we subtract 497 from 530, we get 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 final outcome is 8079.577, with a leftover of 0.0033.