90016287 ÷ 797 
The aim is to understand the frequency of 797 in 90016287.

Step 1:
If we divide 9 by 797, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 797

On to step 2:
90 divided by 797 is 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Grab the next digit (0) from the dividend, add it to 90, then carry on: 900 / 797

Let's proceed to step 3:
If we divide 900 by 797, we get 1 and a remainder of 103.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 797 from 900 and we're left with 103.
Bring next digit (1) of the dividend behind the 103 and repeat the process: 1031 / 797

Step 4:
When dividing 1031 by 797, we get 1 with a remainder of 234.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 797 from 1031 leaves us with 234.
Include the next digit (6) from the dividend after 234, then repeat: 2346 / 797

Advancing to step 5:
If we divide 2346 by 797, we get 2 and a remainder of 752.
Write down 2 as next digit of the result. 
Result so far: 112.0
If we subtract 1594 from 2346, we get 752.
Bring next digit (2) of the dividend behind the 752 and repeat the process: 7522 / 797

Going ahead to step 6:
When dividing 7522 by 797, we get 9 with a remainder of 349.
The next digit of our result is 9. 
Result so far: 1129.0
If we take 7173 away from 7522, we end up with 349.
Include the next digit (8) from the dividend after 349, then repeat: 3498 / 797

On to step 7:
If we divide 3498 by 797, we get 4 and a remainder of 310.
Put 4 as the next digit of the answer. 
Result so far: 11294.0
Deduct 3188 from 3498 and we're left with 310.
Bring next digit (7) of the dividend behind the 310 and repeat the process: 3107 / 797

Step 8:
The number 797 fits into 3107 3 times, leaving a remainder of 716.
The number 3 becomes the next digit in our result. 
Result so far: 112943.0
If we subtract 2391 from 3107, we get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Let's proceed to step 9:
797 can be fit into 7160 8 times, resulting in a remainder of 784.
Put 8 as the next digit of the answer. 
Result so far: 112943.8
If we take 6376 away from 7160, we end up with 784.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Let's proceed to step 10:
7840 divided by 797 is 9 with a remainder of 667.
Write down 9 as next digit of the result. 
Result so far: 112943.89
Subtracting 7173 from 7840 leaves us with 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6670, and continue the process.

Moving on to step 11:
If we divide 6670 by 797, we get 8 and a remainder of 294.
Write down 8 as next digit of the result. 
Result so far: 112943.898
The remainder is 294 after subtracting 6376 from 6670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 12:
797 can be fit into 2940 3 times, resulting in a remainder of 549.
Put 3 as the next digit of the answer. 
Result so far: 112943.8983
If we subtract 2391 from 2940, we get 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Step 13:
The number 797 fits into 5490 6 times, leaving a remainder of 708.
Put 6 as the next digit of the answer. 
Result so far: 112943.89836
Deduct 4782 from 5490 and we're left with 708.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7080, and continue the process.

Moving on to step 14:
7080 divided by 797 is 8 with a remainder of 704.
Record the quotient 8 as the next digit in the result. 
Result so far: 112943.898368
If we subtract 6376 from 7080, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Step 15:
When dividing 7040 by 797, we get 8 with a remainder of 664.
Put 8 as the next digit of the answer. 
Result so far: 112943.8983688
The remainder is 664 after subtracting 6376 from 7040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

The final outcome is 112943.8983688, with a leftover of 6.64e-06.