81602 divided by 71 
The aim is to understand the frequency of 71 in 81602.

Going ahead to step 1:
The number 71 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 71

Advancing to step 2:
The number 71 fits into 81 1 times, leaving a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 71 from 81 and we're left with 10.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 71

Advancing to step 3:
The number 71 fits into 106 1 times, leaving a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 71 from 106, we get 35.
Bring next digit (0) of the dividend behind the 35 and repeat the process: 350 / 71

Advancing to step 4:
The number 71 fits into 350 4 times, leaving a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 114.0
The remainder is 66 after subtracting 284 from 350.
Include the next digit (2) from the dividend after 66, then repeat: 662 / 71

On to step 5:
662 divided by 71 is 9 with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 1149.0
If we take 639 away from 662, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 6:
When dividing 230 by 71, we get 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 1149.3
The remainder is 17 after subtracting 213 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 7:
If we divide 170 by 71, we get 2 and a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 1149.32
If we subtract 142 from 170, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 8:
71 goes into 280 3 times with a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 1149.323
Subtracting 213 from 280 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 9:
If we divide 670 by 71, we get 9 and a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 1149.3239
Deduct 639 from 670 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
310 divided by 71 is 4 with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 1149.32394
The remainder is 26 after subtracting 284 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 11:
If we divide 260 by 71, we get 3 and a remainder of 47.
The next digit of our result is 3. 
Result so far: 1149.323943
Deduct 213 from 260 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 12:
If we divide 470 by 71, we get 6 and a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 1149.3239436
Deduct 426 from 470 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 13:
440 divided by 71 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 1149.32394366
Subtract 426 from 440 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 1149.32394366 and a remainder of 1.4e-08.