85438688 ÷ 688 
The aim is to understand the frequency of 688 in 85438688.

Advancing to step 1:
The number 688 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 688

Advancing to step 2:
688 can be fit into 85 0 times, resulting in a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Fetch the next digit (4) from the dividend, attach it to 85 and continue: 854 / 688

On to step 3:
When dividing 854 by 688, we get 1 with a remainder of 166.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 688 from 854 and we're left with 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 688

Step 4:
1663 divided by 688 is 2 with a remainder of 287.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 287 after subtracting 1376 from 1663.
Include the next digit (8) from the dividend after 287, then repeat: 2878 / 688

On to step 5:
The number 688 fits into 2878 4 times, leaving a remainder of 126.
The next digit of our result is 4. 
Result so far: 124.0
If we take 2752 away from 2878, we end up with 126.
Grab the next digit (6) from the dividend, add it to 126, then carry on: 1266 / 688

Going ahead to step 6:
If we divide 1266 by 688, we get 1 and a remainder of 578.
The next digit of our result is 1. 
Result so far: 1241.0
The remainder is 578 after subtracting 688 from 1266.
Fetch the next digit (8) from the dividend, attach it to 578 and continue: 5788 / 688

Step 7:
If we divide 5788 by 688, we get 8 and a remainder of 284.
The number 8 becomes the next digit in our result. 
Result so far: 12418.0
Subtract 5504 from 5788 to get 284.
Grab the next digit (8) from the dividend, add it to 284, then carry on: 2848 / 688

Going ahead to step 8:
688 can be fit into 2848 4 times, resulting in a remainder of 96.
The next digit of our result is 4. 
Result so far: 124184.0
Subtracting 2752 from 2848 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 9:
960 divided by 688 is 1 with a remainder of 272.
Write down 1 as next digit of the result. 
Result so far: 124184.1
Deduct 688 from 960 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 10:
2720 divided by 688 is 3 with a remainder of 656.
The next digit of our result is 3. 
Result so far: 124184.13
Subtracting 2064 from 2720 leaves us with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Advancing to step 11:
The number 688 fits into 6560 9 times, leaving a remainder of 368.
Use 9 as the next digit of our solution. 
Result so far: 124184.139
Subtracting 6192 from 6560 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 12:
3680 divided by 688 is 5 with a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 124184.1395
If we take 3440 away from 3680, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 13:
If we divide 2400 by 688, we get 3 and a remainder of 336.
The number 3 becomes the next digit in our result. 
Result so far: 124184.13953
Subtracting 2064 from 2400 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Advancing to step 14:
3360 divided by 688 is 4 with a remainder of 608.
The number 4 becomes the next digit in our result. 
Result so far: 124184.139534
Deduct 2752 from 3360 and we're left with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Moving on to step 15:
688 can be fit into 6080 8 times, resulting in a remainder of 576.
Write down 8 as next digit of the result. 
Result so far: 124184.1395348
If we take 5504 away from 6080, we end up with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Going ahead to step 16:
If we divide 5760 by 688, we get 8 and a remainder of 256.
Write down 8 as next digit of the result. 
Result so far: 124184.13953488
Deduct 5504 from 5760 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The final outcome is 124184.13953488, with a leftover of 2.56e-07.