17819195 ÷ 688 
The aim is to understand the frequency of 688 in 17819195.

Moving on to step 1:
1 divided by 688 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 688

Moving on to step 2:
688 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 688

Moving on to step 3:
688 goes into 178 0 times with a remainder of 178.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 178 leaves us with 178.
Take the next digit (1) from the dividend and append it to 178, then repeat: 1781 / 688

On to step 4:
When dividing 1781 by 688, we get 2 with a remainder of 405.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 1376 from 1781 to get 405.
Fetch the next digit (9) from the dividend, attach it to 405 and continue: 4059 / 688

Step 5:
4059 divided by 688 is 5 with a remainder of 619.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtracting 3440 from 4059 leaves us with 619.
Include the next digit (1) from the dividend after 619, then repeat: 6191 / 688

Going ahead to step 6:
When dividing 6191 by 688, we get 8 with a remainder of 687.
The number 8 becomes the next digit in our result. 
Result so far: 258.0
Subtracting 5504 from 6191 leaves us with 687.
Take the next digit (9) from the dividend and append it to 687, then repeat: 6879 / 688

Advancing to step 7:
6879 divided by 688 is 9 with a remainder of 687.
Use 9 as the next digit of our solution. 
Result so far: 2589.0
The remainder is 687 after subtracting 6192 from 6879.
Bring next digit (5) of the dividend behind the 687 and repeat the process: 6875 / 688

Step 8:
688 goes into 6875 9 times with a remainder of 683.
Put 9 as the next digit of the answer. 
Result so far: 25899.0
Deduct 6192 from 6875 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.

Step 9:
688 can be fit into 6830 9 times, resulting in a remainder of 638.
Put 9 as the next digit of the answer. 
Result so far: 25899.9
The remainder is 638 after subtracting 6192 from 6830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Going ahead to step 10:
When dividing 6380 by 688, we get 9 with a remainder of 188.
Use 9 as the next digit of our solution. 
Result so far: 25899.99
Deduct 6192 from 6380 and we're left 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 25899.99 with a remaining 0.188.