We divide 909999 by 71
The aim is to understand the frequency of 71 in 909999.

On to step 1:
When dividing 9 by 71, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 71

Going ahead to step 2:
The number 71 fits into 90 1 times, leaving a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 71 away from 90, we end up with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 71

Going ahead to step 3:
199 divided by 71 is 2 with a remainder of 57.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 142 from 199 and we're left with 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 71

Moving on to step 4:
579 divided by 71 is 8 with a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 128.0
The remainder is 11 after subtracting 568 from 579.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 71

Step 5:
119 divided by 71 is 1 with a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 1281.0
The remainder is 48 after subtracting 71 from 119.
Grab the next digit (9) from the dividend, add it to 48, then carry on: 489 / 71

Going ahead to step 6:
When dividing 489 by 71, we get 6 with a remainder of 63.
The next digit of our result is 6. 
Result so far: 12816.0
If we subtract 426 from 489, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 7:
The number 71 fits into 630 8 times, leaving a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 12816.8
Subtracting 568 from 630 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 8:
71 can be fit into 620 8 times, resulting in a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 12816.88
If we subtract 568 from 620, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 12816.88 and a remainder of 0.052.