We divide 643122 by 71
The aim is to understand the frequency of 71 in 643122.

Moving on to step 1:
71 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 71

On to step 2:
When dividing 64 by 71, we get 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Fetch the next digit (3) from the dividend, attach it to 64 and continue: 643 / 71

Step 3:
71 can be fit into 643 9 times, resulting in a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 639 from 643 to get 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 71

On to step 4:
71 goes into 41 0 times with a remainder of 41.
Use 0 as the next digit of our solution. 
Result so far: 90.0
Subtracting 0 from 41 leaves us with 41.
Take the next digit (2) from the dividend and append it to 41, then repeat: 412 / 71

Advancing to step 5:
If we divide 412 by 71, we get 5 and a remainder of 57.
Record the quotient 5 as the next digit in the result. 
Result so far: 905.0
If we take 355 away from 412, we end up with 57.
Fetch the next digit (2) from the dividend, attach it to 57 and continue: 572 / 71

Step 6:
71 can be fit into 572 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 9058.0
Subtract 568 from 572 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
When dividing 40 by 71, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9058.0
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
400 divided by 71 is 5 with a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 9058.05
If we take 355 away from 400, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
If we divide 450 by 71, we get 6 and a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 9058.056
If we take 426 away from 450, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
When dividing 240 by 71, we get 3 with a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 9058.0563
If we subtract 213 from 240, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 11:
The number 71 fits into 270 3 times, leaving a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 9058.05633
If we take 213 away from 270, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final result is 9058.05633 with a remainder of 5.7e-05.