We're dividing 983602 by 71 
The aim is to understand the frequency of 71 in 983602.

Let's proceed to step 1:
The number 71 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 71

Let's proceed to step 2:
71 goes into 98 1 times with a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 71 from 98, we get 27.
Take the next digit (3) from the dividend and append it to 27, then repeat: 273 / 71

Advancing to step 3:
71 goes into 273 3 times with a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 213 away from 273, we end up with 60.
Fetch the next digit (6) from the dividend, attach it to 60 and continue: 606 / 71

On to step 4:
If we divide 606 by 71, we get 8 and a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 138.0
If we take 568 away from 606, we end up with 38.
Grab the next digit (0) from the dividend, add it to 38, then carry on: 380 / 71

Step 5:
If we divide 380 by 71, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 1385.0
If we take 355 away from 380, we end up with 25.
Take the next digit (2) from the dividend and append it to 25, then repeat: 252 / 71

On to step 6:
71 can be fit into 252 3 times, resulting in a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 13853.0
Deduct 213 from 252 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
If we divide 390 by 71, we get 5 and a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 13853.5
If we subtract 355 from 390, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 8:
350 divided by 71 is 4 with a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 13853.54
The remainder is 66 after subtracting 284 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 9:
660 divided by 71 is 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 13853.549
If we subtract 639 from 660, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 10:
71 goes into 210 2 times with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 13853.5492
If we subtract 142 from 210, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 11:
When dividing 680 by 71, we get 9 with a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 13853.54929
Subtract 639 from 680 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 12:
71 can be fit into 410 5 times, resulting in a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 13853.549295
Subtract 355 from 410 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 13:
71 goes into 550 7 times with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 13853.5492957
Deduct 497 from 550 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 14:
71 goes into 530 7 times with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 13853.54929577
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 13853.54929577, with a leftover of 3.3e-08.