66104097 ÷ 71 
The aim is to understand the frequency of 71 in 66104097.

On to step 1:
The number 71 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 71

Step 2:
The number 71 fits into 66 0 times, leaving a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (1) from the dividend and append it to 66, then repeat: 661 / 71

Moving on to step 3:
661 divided by 71 is 9 with a remainder of 22.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 22 after subtracting 639 from 661.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 71

Advancing to step 4:
If we divide 220 by 71, we get 3 and a remainder of 7.
The next digit of our result is 3. 
Result so far: 93.0
Deduct 213 from 220 and we're left with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 71

Going ahead to step 5:
74 divided by 71 is 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 931.0
The remainder is 3 after subtracting 71 from 74.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 71

Let's proceed to step 6:
30 divided by 71 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 9310.0
Subtract 0 from 30 to get 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 71

Let's proceed to step 7:
When dividing 309 by 71, we get 4 with a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 93104.0
The remainder is 25 after subtracting 284 from 309.
Grab the next digit (7) from the dividend, add it to 25, then carry on: 257 / 71

Advancing to step 8:
If we divide 257 by 71, we get 3 and a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 931043.0
The remainder is 44 after subtracting 213 from 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 9:
440 divided by 71 is 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 931043.6
If we take 426 away from 440, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 71, we get 1 with a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 931043.61
Subtracting 71 from 140 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 11:
The number 71 fits into 690 9 times, leaving a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 931043.619
Subtract 639 from 690 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 12:
When dividing 510 by 71, we get 7 with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 931043.6197
If we take 497 away from 510, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 13:
130 divided by 71 is 1 with a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 931043.61971
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.

Advancing to step 14:
71 goes into 590 8 times with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 931043.619718
The remainder is 22 after subtracting 568 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 15:
When dividing 220 by 71, we get 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 931043.6197183
The remainder is 7 after subtracting 213 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 16:
If we divide 70 by 71, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 931043.6197183
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 931043.6197183, with a leftover of 7e-08.