321771 divided by 71 
The aim is to understand the frequency of 71 in 321771.

Let's proceed to step 1:
The number 71 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 71

Going ahead to step 2:
71 can be fit into 32 0 times, resulting in a remainder of 32.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 32 leaves us with 32.
Grab the next digit (1) from the dividend, add it to 32, then carry on: 321 / 71

On to step 3:
71 can be fit into 321 4 times, resulting in a remainder of 37.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 284 from 321 to get 37.
Fetch the next digit (7) from the dividend, attach it to 37 and continue: 377 / 71

Step 4:
71 goes into 377 5 times with a remainder of 22.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
If we take 355 away from 377, we end up with 22.
Include the next digit (7) from the dividend after 22, then repeat: 227 / 71

Advancing to step 5:
If we divide 227 by 71, we get 3 and a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 453.0
Subtract 213 from 227 to get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 71

Step 6:
141 divided by 71 is 1 with a remainder of 70.
Put 1 as the next digit of the answer. 
Result so far: 4531.0
Subtract 71 from 141 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 7:
71 can be fit into 700 9 times, resulting in a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 4531.9
If we take 639 away from 700, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 8:
The number 71 fits into 610 8 times, leaving a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 4531.98
If we take 568 away from 610, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
The number 71 fits into 420 5 times, leaving a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 4531.985
The remainder is 65 after subtracting 355 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 10:
If we divide 650 by 71, we get 9 and a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 4531.9859
Subtracting 639 from 650 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 11:
110 divided by 71 is 1 with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 4531.98591
Subtract 71 from 110 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 12:
The number 71 fits into 390 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 4531.985915
Subtracting 355 from 390 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 13:
If we divide 350 by 71, we get 4 and a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 4531.9859154
If we take 284 away from 350, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 14:
71 can be fit into 660 9 times, resulting in a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 4531.98591549
Deduct 639 from 660 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final outcome is 4531.98591549, with a leftover of 2.1e-08.