839621 ÷ 71 
The aim is to understand the frequency of 71 in 839621.

Step 1:
If we divide 8 by 71, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 71

Let's proceed to step 2:
When dividing 83 by 71, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 71 from 83 leaves us with 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 71

On to step 3:
71 goes into 129 1 times with a remainder of 58.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 71 from 129 and we're left with 58.
Take the next digit (6) from the dividend and append it to 58, then repeat: 586 / 71

Going ahead to step 4:
71 goes into 586 8 times with a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 118.0
Subtract 568 from 586 to get 18.
Bring next digit (2) of the dividend behind the 18 and repeat the process: 182 / 71

Step 5:
If we divide 182 by 71, we get 2 and a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 1182.0
Subtracting 142 from 182 leaves us with 40.
Fetch the next digit (1) from the dividend, attach it to 40 and continue: 401 / 71

Moving on to step 6:
If we divide 401 by 71, we get 5 and a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 11825.0
Subtracting 355 from 401 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 7:
If we divide 460 by 71, we get 6 and a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 11825.6
Deduct 426 from 460 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
If we divide 340 by 71, we get 4 and a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 11825.64
If we subtract 284 from 340, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 9:
71 goes into 560 7 times with a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 11825.647
Subtracting 497 from 560 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 10:
71 can be fit into 630 8 times, resulting in a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 11825.6478
If we take 568 away from 630, we end up 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.

Moving on to step 11:
71 goes into 620 8 times with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 11825.64788
The remainder is 52 after subtracting 568 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

In conclusion, the division gives 11825.64788 with a balance of 5.2e-05.