Let's divide 680464 by 99
The aim is to understand the frequency of 99 in 680464.

Going ahead to step 1:
When dividing 6 by 99, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 99

Moving on to step 2:
The number 99 fits into 68 0 times, leaving a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Take the next digit (0) from the dividend and append it to 68, then repeat: 680 / 99

Going ahead to step 3:
When dividing 680 by 99, we get 6 with a remainder of 86.
The next digit of our result is 6. 
Result so far: 6.0
If we take 594 away from 680, we end up with 86.
Take the next digit (4) from the dividend and append it to 86, then repeat: 864 / 99

Going ahead to step 4:
If we divide 864 by 99, we get 8 and a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 68.0
If we subtract 792 from 864, we get 72.
Fetch the next digit (6) from the dividend, attach it to 72 and continue: 726 / 99

Going ahead to step 5:
If we divide 726 by 99, we get 7 and a remainder of 33.
The next digit of our result is 7. 
Result so far: 687.0
If we take 693 away from 726, we end up with 33.
Grab the next digit (4) from the dividend, add it to 33, then carry on: 334 / 99

Advancing to step 6:
The number 99 fits into 334 3 times, leaving a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 6873.0
If we take 297 away from 334, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 7:
If we divide 370 by 99, we get 3 and a remainder of 73.
Write down 3 as next digit of the result. 
Result so far: 6873.3
Subtract 297 from 370 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 8:
If we divide 730 by 99, we get 7 and a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 6873.37
Deduct 693 from 730 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 9:
99 can be fit into 370 3 times, resulting in a remainder of 73.
Record the quotient 3 as the next digit in the result. 
Result so far: 6873.373
Subtract 297 from 370 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 10:
99 goes into 730 7 times with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 6873.3737
Subtract 693 from 730 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 11:
If we divide 370 by 99, we get 3 and a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 6873.37373
Deduct 297 from 370 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 12:
The number 99 fits into 730 7 times, leaving a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 6873.373737
Deduct 693 from 730 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 13:
99 can be fit into 370 3 times, resulting in a remainder of 73.
Put 3 as the next digit of the answer. 
Result so far: 6873.3737373
Subtracting 297 from 370 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 14:
99 goes into 730 7 times with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 6873.37373737
If we take 693 away from 730, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

The final outcome is 6873.37373737, with a leftover of 3.7e-08.