We're dividing 38475717 by 688 
The aim is to understand the frequency of 688 in 38475717.

Going ahead to step 1:
If we divide 3 by 688, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 688

Going ahead to step 2:
38 divided by 688 is 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 688

On to step 3:
When dividing 384 by 688, we get 0 with a remainder of 384.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 384, we get 384.
Bring next digit (7) of the dividend behind the 384 and repeat the process: 3847 / 688

Step 4:
When dividing 3847 by 688, we get 5 with a remainder of 407.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 3440 from 3847 leaves us with 407.
Fetch the next digit (5) from the dividend, attach it to 407 and continue: 4075 / 688

Let's proceed to step 5:
4075 divided by 688 is 5 with a remainder of 635.
Put 5 as the next digit of the answer. 
Result so far: 55.0
Deduct 3440 from 4075 and we're left with 635.
Take the next digit (7) from the dividend and append it to 635, then repeat: 6357 / 688

Going ahead to step 6:
When dividing 6357 by 688, we get 9 with a remainder of 165.
Write down 9 as next digit of the result. 
Result so far: 559.0
Deduct 6192 from 6357 and we're left with 165.
Grab the next digit (1) from the dividend, add it to 165, then carry on: 1651 / 688

Step 7:
The number 688 fits into 1651 2 times, leaving a remainder of 275.
Use 2 as the next digit of our solution. 
Result so far: 5592.0
Subtracting 1376 from 1651 leaves us with 275.
Include the next digit (7) from the dividend after 275, then repeat: 2757 / 688

On to step 8:
When dividing 2757 by 688, we get 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 55924.0
Subtracting 2752 from 2757 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
The number 688 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 55924.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
The number 688 fits into 500 0 times, leaving a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 55924.0
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final result is 55924.0 with a remainder of 0.5.