83531087 ÷ 71 
The aim is to understand the frequency of 71 in 83531087.

On to step 1:
When dividing 8 by 71, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 71

Advancing to step 2:
71 goes into 83 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 71 from 83 and we're left with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 71

Moving on to step 3:
The number 71 fits into 125 1 times, leaving a remainder of 54.
The next digit of our result is 1. 
Result so far: 11.0
Subtract 71 from 125 to get 54.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 71

Going ahead to step 4:
71 goes into 543 7 times with a remainder of 46.
Use 7 as the next digit of our solution. 
Result so far: 117.0
If we take 497 away from 543, we end up with 46.
Bring next digit (1) of the dividend behind the 46 and repeat the process: 461 / 71

Let's proceed to step 5:
When dividing 461 by 71, we get 6 with a remainder of 35.
Use 6 as the next digit of our solution. 
Result so far: 1176.0
Subtracting 426 from 461 leaves us with 35.
Include the next digit (0) from the dividend after 35, then repeat: 350 / 71

Step 6:
The number 71 fits into 350 4 times, leaving a remainder of 66.
The next digit of our result is 4. 
Result so far: 11764.0
The remainder is 66 after subtracting 284 from 350.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 71

Going ahead to step 7:
71 can be fit into 668 9 times, resulting in a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 117649.0
If we take 639 away from 668, we end up with 29.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 71

On to step 8:
71 can be fit into 297 4 times, resulting in a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 1176494.0
Subtract 284 from 297 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
When dividing 130 by 71, we get 1 with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 1176494.1
Deduct 71 from 130 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 10:
If we divide 590 by 71, we get 8 and a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 1176494.18
Deduct 568 from 590 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 11:
220 divided by 71 is 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 1176494.183
Subtract 213 from 220 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 12:
71 goes into 70 0 times with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 1176494.183
Deduct 0 from 70 and we're left 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.

Going ahead to step 13:
700 divided by 71 is 9 with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 1176494.18309
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.

Step 14:
71 can be fit into 610 8 times, resulting in a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 1176494.183098
Subtracting 568 from 610 leaves us 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.

Advancing to step 15:
The number 71 fits into 420 5 times, leaving a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 1176494.1830985
If we take 355 away from 420, we end up 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.

Moving on to step 16:
The number 71 fits into 650 9 times, leaving a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 1176494.18309859
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.

After the division, we end up with 1176494.18309859 and a remainder of 1.1e-08.