We're dividing 50235033 by 688 
The aim is to understand the frequency of 688 in 50235033.

On to step 1:
If we divide 5 by 688, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 688

Going ahead to step 2:
50 divided by 688 is 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Grab the next digit (2) from the dividend, add it to 50, then carry on: 502 / 688

Let's proceed to step 3:
The number 688 fits into 502 0 times, leaving a remainder of 502.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 502, we end up with 502.
Take the next digit (3) from the dividend and append it to 502, then repeat: 5023 / 688

Going ahead to step 4:
688 can be fit into 5023 7 times, resulting in a remainder of 207.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 4816 from 5023 to get 207.
Take the next digit (5) from the dividend and append it to 207, then repeat: 2075 / 688

On to step 5:
2075 divided by 688 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 73.0
If we take 2064 away from 2075, we end up with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 688

On to step 6:
The number 688 fits into 110 0 times, leaving a remainder of 110.
The next digit of our result is 0. 
Result so far: 730.0
If we subtract 0 from 110, we get 110.
Bring next digit (3) of the dividend behind the 110 and repeat the process: 1103 / 688

Going ahead to step 7:
688 goes into 1103 1 times with a remainder of 415.
The number 1 becomes the next digit in our result. 
Result so far: 7301.0
The remainder is 415 after subtracting 688 from 1103.
Take the next digit (3) from the dividend and append it to 415, then repeat: 4153 / 688

Advancing to step 8:
The number 688 fits into 4153 6 times, leaving a remainder of 25.
Put 6 as the next digit of the answer. 
Result so far: 73016.0
The remainder is 25 after subtracting 4128 from 4153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
The number 688 fits into 250 0 times, leaving a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 73016.0
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 10:
688 goes into 2500 3 times with a remainder of 436.
The next digit of our result is 3. 
Result so far: 73016.03
The remainder is 436 after subtracting 2064 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Going ahead to step 11:
If we divide 4360 by 688, we get 6 and a remainder of 232.
The next digit of our result is 6. 
Result so far: 73016.036
If we subtract 4128 from 4360, we get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 12:
2320 divided by 688 is 3 with a remainder of 256.
Use 3 as the next digit of our solution. 
Result so far: 73016.0363
Subtracting 2064 from 2320 leaves us 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.

Moving on to step 13:
688 goes into 2560 3 times with a remainder of 496.
Put 3 as the next digit of the answer. 
Result so far: 73016.03633
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.

After the division, we end up with 73016.03633 and a remainder of 0.000496.