We look at the division of 75587359 by 688 
The aim is to understand the frequency of 688 in 75587359.

Going ahead to step 1:
7 divided by 688 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 688

On to step 2:
688 goes into 75 0 times with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 688

Moving on to step 3:
The number 688 fits into 755 1 times, leaving a remainder of 67.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 688 from 755 and we're left with 67.
Bring next digit (8) of the dividend behind the 67 and repeat the process: 678 / 688

Advancing to step 4:
If we divide 678 by 688, we get 0 and a remainder of 678.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 678 after subtracting 0 from 678.
Take the next digit (7) from the dividend and append it to 678, then repeat: 6787 / 688

Let's proceed to step 5:
When dividing 6787 by 688, we get 9 with a remainder of 595.
The next digit of our result is 9. 
Result so far: 109.0
If we take 6192 away from 6787, we end up with 595.
Bring next digit (3) of the dividend behind the 595 and repeat the process: 5953 / 688

Step 6:
If we divide 5953 by 688, we get 8 and a remainder of 449.
The next digit of our result is 8. 
Result so far: 1098.0
Subtracting 5504 from 5953 leaves us with 449.
Grab the next digit (5) from the dividend, add it to 449, then carry on: 4495 / 688

Let's proceed to step 7:
If we divide 4495 by 688, we get 6 and a remainder of 367.
The number 6 becomes the next digit in our result. 
Result so far: 10986.0
If we take 4128 away from 4495, we end up with 367.
Include the next digit (9) from the dividend after 367, then repeat: 3679 / 688

Moving on to step 8:
If we divide 3679 by 688, we get 5 and a remainder of 239.
Put 5 as the next digit of the answer. 
Result so far: 109865.0
Subtracting 3440 from 3679 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Advancing to step 9:
If we divide 2390 by 688, we get 3 and a remainder of 326.
Use 3 as the next digit of our solution. 
Result so far: 109865.3
Subtracting 2064 from 2390 leaves us with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 10:
When dividing 3260 by 688, we get 4 with a remainder of 508.
Put 4 as the next digit of the answer. 
Result so far: 109865.34
Deduct 2752 from 3260 and we're left with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

On to step 11:
688 goes into 5080 7 times with a remainder of 264.
The number 7 becomes the next digit in our result. 
Result so far: 109865.347
Subtract 4816 from 5080 to get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 12:
If we divide 2640 by 688, we get 3 and a remainder of 576.
The next digit of our result is 3. 
Result so far: 109865.3473
The remainder is 576 after subtracting 2064 from 2640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Advancing to step 13:
5760 divided by 688 is 8 with a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 109865.34738
If we subtract 5504 from 5760, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 14:
2560 divided by 688 is 3 with a remainder of 496.
Record the quotient 3 as the next digit in the result. 
Result so far: 109865.347383
Subtracting 2064 from 2560 leaves us with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

On to step 15:
4960 divided by 688 is 7 with a remainder of 144.
Write down 7 as next digit of the result. 
Result so far: 109865.3473837
The remainder is 144 after subtracting 4816 from 4960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 16:
If we divide 1440 by 688, we get 2 and a remainder of 64.
The next digit of our result is 2. 
Result so far: 109865.34738372
Subtract 1376 from 1440 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 109865.34738372 with a remainder of 6.4e-08.