We're dividing 721067 by 71 
The aim is to understand the frequency of 71 in 721067.

Moving on to step 1:
When dividing 7 by 71, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 71

Moving on to step 2:
The number 71 fits into 72 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 71 from 72 leaves us with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 71

Advancing to step 3:
When dividing 11 by 71, we get 0 with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 11, we end up with 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 71

On to step 4:
110 divided by 71 is 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
If we take 71 away from 110, we end up with 39.
Append the next digit (6) from the dividend to 39 and continue with: 396 / 71

Step 5:
396 divided by 71 is 5 with a remainder of 41.
Put 5 as the next digit of the answer. 
Result so far: 1015.0
If we subtract 355 from 396, we get 41.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 71

On to step 6:
417 divided by 71 is 5 with a remainder of 62.
Put 5 as the next digit of the answer. 
Result so far: 10155.0
Subtracting 355 from 417 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 7:
71 goes into 620 8 times with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 10155.8
If we subtract 568 from 620, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 8:
520 divided by 71 is 7 with a remainder of 23.
The next digit of our result is 7. 
Result so far: 10155.87
Subtract 497 from 520 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 9:
If we divide 230 by 71, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 10155.873
The remainder is 17 after subtracting 213 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 10:
71 can be fit into 170 2 times, resulting in a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 10155.8732
If we subtract 142 from 170, we 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.

Advancing to step 11:
71 goes into 280 3 times with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 10155.87323
The remainder is 67 after subtracting 213 from 280.
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 12:
670 divided by 71 is 9 with a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 10155.873239
Subtract 639 from 670 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 13:
71 goes into 310 4 times with a remainder of 26.
The next digit of our result is 4. 
Result so far: 10155.8732394
Subtracting 284 from 310 leaves us with 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 14:
71 can be fit into 260 3 times, resulting in a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 10155.87323943
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.

The final result is 10155.87323943 with a remainder of 4.7e-08.