We're dividing 283999 by 71 
The aim is to understand the frequency of 71 in 283999.

On to step 1:
When dividing 2 by 71, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 71

Advancing to step 2:
The number 71 fits into 28 0 times, leaving a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Bring next digit (3) of the dividend behind the 28 and repeat the process: 283 / 71

Going ahead to step 3:
The number 71 fits into 283 3 times, leaving a remainder of 70.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 213 from 283 to get 70.
Fetch the next digit (9) from the dividend, attach it to 70 and continue: 709 / 71

Advancing to step 4:
71 goes into 709 9 times with a remainder of 70.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Deduct 639 from 709 and we're left with 70.
Fetch the next digit (9) from the dividend, attach it to 70 and continue: 709 / 71

Step 5:
When dividing 709 by 71, we get 9 with a remainder of 70.
Write down 9 as next digit of the result. 
Result so far: 399.0
If we subtract 639 from 709, we get 70.
Grab the next digit (9) from the dividend, add it to 70, then carry on: 709 / 71

Moving on to step 6:
When dividing 709 by 71, we get 9 with a remainder of 70.
The next digit of our result is 9. 
Result so far: 3999.0
If we take 639 away from 709, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 7:
700 divided by 71 is 9 with a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 3999.9
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.

Going ahead to step 8:
71 can be fit into 610 8 times, resulting in a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 3999.98
If we subtract 568 from 610, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 9:
71 can be fit into 420 5 times, resulting in a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 3999.985
Subtracting 355 from 420 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 10:
When dividing 650 by 71, we get 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 3999.9859
Deduct 639 from 650 and we're left 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.

Let's proceed to step 11:
71 goes into 110 1 times with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 3999.98591
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:
71 goes into 390 5 times with a remainder of 35.
The next digit of our result is 5. 
Result so far: 3999.985915
The remainder is 35 after subtracting 355 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 13:
71 goes into 350 4 times with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 3999.9859154
Subtracting 284 from 350 leaves us 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:
If we divide 660 by 71, we get 9 and a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 3999.98591549
If we take 639 away from 660, we end up 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 result is 3999.98591549 with a remainder of 2.1e-08.