We divide 99910325 by 679
The aim is to understand the frequency of 679 in 99910325.

On to step 1:
The number 679 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 679

On to step 2:
If we divide 99 by 679, we get 0 and a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Bring next digit (9) of the dividend behind the 99 and repeat the process: 999 / 679

Let's proceed to step 3:
The number 679 fits into 999 1 times, leaving a remainder of 320.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 320 after subtracting 679 from 999.
Append the next digit (1) from the dividend to 320 and continue with: 3201 / 679

On to step 4:
3201 divided by 679 is 4 with a remainder of 485.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 2716 from 3201 to get 485.
Append the next digit (0) from the dividend to 485 and continue with: 4850 / 679

Advancing to step 5:
679 can be fit into 4850 7 times, resulting in a remainder of 97.
Write down 7 as next digit of the result. 
Result so far: 147.0
Subtracting 4753 from 4850 leaves us with 97.
Bring next digit (3) of the dividend behind the 97 and repeat the process: 973 / 679

On to step 6:
679 goes into 973 1 times with a remainder of 294.
Use 1 as the next digit of our solution. 
Result so far: 1471.0
Subtract 679 from 973 to get 294.
Bring next digit (2) of the dividend behind the 294 and repeat the process: 2942 / 679

Let's proceed to step 7:
2942 divided by 679 is 4 with a remainder of 226.
Put 4 as the next digit of the answer. 
Result so far: 14714.0
Subtract 2716 from 2942 to get 226.
Fetch the next digit (5) from the dividend, attach it to 226 and continue: 2265 / 679

Let's proceed to step 8:
2265 divided by 679 is 3 with a remainder of 228.
Put 3 as the next digit of the answer. 
Result so far: 147143.0
Subtract 2037 from 2265 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 9:
The number 679 fits into 2280 3 times, leaving a remainder of 243.
The number 3 becomes the next digit in our result. 
Result so far: 147143.3
Subtract 2037 from 2280 to get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Going ahead to step 10:
679 can be fit into 2430 3 times, resulting in a remainder of 393.
The next digit of our result is 3. 
Result so far: 147143.33
The remainder is 393 after subtracting 2037 from 2430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

After the division, we end up with 147143.33 and a remainder of 0.393.