30880187 divided by 688 
The aim is to understand the frequency of 688 in 30880187.

Moving on to step 1:
688 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 688

Advancing to step 2:
When dividing 30 by 688, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 688

Advancing to step 3:
If we divide 308 by 688, we get 0 and a remainder of 308.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 308 leaves us with 308.
Append the next digit (8) from the dividend to 308 and continue with: 3088 / 688

Step 4:
3088 divided by 688 is 4 with a remainder of 336.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 336 after subtracting 2752 from 3088.
Take the next digit (0) from the dividend and append it to 336, then repeat: 3360 / 688

Moving on to step 5:
The number 688 fits into 3360 4 times, leaving a remainder of 608.
Put 4 as the next digit of the answer. 
Result so far: 44.0
Subtract 2752 from 3360 to get 608.
Append the next digit (1) from the dividend to 608 and continue with: 6081 / 688

Moving on to step 6:
If we divide 6081 by 688, we get 8 and a remainder of 577.
Write down 8 as next digit of the result. 
Result so far: 448.0
If we take 5504 away from 6081, we end up with 577.
Include the next digit (8) from the dividend after 577, then repeat: 5778 / 688

Advancing to step 7:
5778 divided by 688 is 8 with a remainder of 274.
The number 8 becomes the next digit in our result. 
Result so far: 4488.0
Subtract 5504 from 5778 to get 274.
Grab the next digit (7) from the dividend, add it to 274, then carry on: 2747 / 688

Moving on to step 8:
688 can be fit into 2747 3 times, resulting in a remainder of 683.
Use 3 as the next digit of our solution. 
Result so far: 44883.0
Deduct 2064 from 2747 and we're left with 683.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6830, and continue the process.

Advancing to step 9:
The number 688 fits into 6830 9 times, leaving a remainder of 638.
Record the quotient 9 as the next digit in the result. 
Result so far: 44883.9
Deduct 6192 from 6830 and we're left with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Step 10:
688 can be fit into 6380 9 times, resulting in a remainder of 188.
Use 9 as the next digit of our solution. 
Result so far: 44883.99
If we take 6192 away from 6380, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Our division results in 44883.99 with a remaining 0.188.