91549971 ÷ 499 
The aim is to understand the frequency of 499 in 91549971.

Going ahead to step 1:
When dividing 9 by 499, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 499

Advancing to step 2:
The number 499 fits into 91 0 times, leaving a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (5) of the dividend behind the 91 and repeat the process: 915 / 499

Moving on to step 3:
When dividing 915 by 499, we get 1 with a remainder of 416.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 499 away from 915, we end up with 416.
Include the next digit (4) from the dividend after 416, then repeat: 4164 / 499

Moving on to step 4:
The number 499 fits into 4164 8 times, leaving a remainder of 172.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtract 3992 from 4164 to get 172.
Bring next digit (9) of the dividend behind the 172 and repeat the process: 1729 / 499

Advancing to step 5:
If we divide 1729 by 499, we get 3 and a remainder of 232.
Record the quotient 3 as the next digit in the result. 
Result so far: 183.0
If we take 1497 away from 1729, we end up with 232.
Take the next digit (9) from the dividend and append it to 232, then repeat: 2329 / 499

Step 6:
When dividing 2329 by 499, we get 4 with a remainder of 333.
Put 4 as the next digit of the answer. 
Result so far: 1834.0
Subtract 1996 from 2329 to get 333.
Append the next digit (7) from the dividend to 333 and continue with: 3337 / 499

Let's proceed to step 7:
499 can be fit into 3337 6 times, resulting in a remainder of 343.
Write down 6 as next digit of the result. 
Result so far: 18346.0
The remainder is 343 after subtracting 2994 from 3337.
Append the next digit (1) from the dividend to 343 and continue with: 3431 / 499

Going ahead to step 8:
When dividing 3431 by 499, we get 6 with a remainder of 437.
The number 6 becomes the next digit in our result. 
Result so far: 183466.0
Deduct 2994 from 3431 and we're left with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Advancing to step 9:
4370 divided by 499 is 8 with a remainder of 378.
Record the quotient 8 as the next digit in the result. 
Result so far: 183466.8
If we take 3992 away from 4370, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Let's proceed to step 10:
3780 divided by 499 is 7 with a remainder of 287.
The next digit of our result is 7. 
Result so far: 183466.87
Subtract 3493 from 3780 to get 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Going ahead to step 11:
499 goes into 2870 5 times with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 183466.875
If we subtract 2495 from 2870, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 12:
3750 divided by 499 is 7 with a remainder of 257.
Record the quotient 7 as the next digit in the result. 
Result so far: 183466.8757
If we take 3493 away from 3750, we end up with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Moving on to step 13:
499 goes into 2570 5 times with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 183466.87575
If we take 2495 away from 2570, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
499 goes into 750 1 times with a remainder of 251.
Write down 1 as next digit of the result. 
Result so far: 183466.875751
Subtracting 499 from 750 leaves us with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Advancing to step 15:
If we divide 2510 by 499, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 183466.8757515
If we subtract 2495 from 2510, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 16:
499 can be fit into 150 0 times, resulting in a remainder of 150.
The next digit of our result is 0. 
Result so far: 183466.8757515
Deduct 0 from 150 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

After the division, we end up with 183466.8757515 and a remainder of 1.5e-07.