78908236 ÷ 687 
The aim is to understand the frequency of 687 in 78908236.

Step 1:
7 divided by 687 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 687

On to step 2:
If we divide 78 by 687, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 687

Step 3:
687 goes into 789 1 times with a remainder of 102.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 102 after subtracting 687 from 789.
Include the next digit (0) from the dividend after 102, then repeat: 1020 / 687

Going ahead to step 4:
687 goes into 1020 1 times with a remainder of 333.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 687 from 1020 leaves us with 333.
Bring next digit (8) of the dividend behind the 333 and repeat the process: 3338 / 687

Moving on to step 5:
687 goes into 3338 4 times with a remainder of 590.
Put 4 as the next digit of the answer. 
Result so far: 114.0
Subtracting 2748 from 3338 leaves us with 590.
Include the next digit (2) from the dividend after 590, then repeat: 5902 / 687

Advancing to step 6:
687 can be fit into 5902 8 times, resulting in a remainder of 406.
Write down 8 as next digit of the result. 
Result so far: 1148.0
If we subtract 5496 from 5902, we get 406.
Append the next digit (3) from the dividend to 406 and continue with: 4063 / 687

On to step 7:
If we divide 4063 by 687, we get 5 and a remainder of 628.
Write down 5 as next digit of the result. 
Result so far: 11485.0
Subtracting 3435 from 4063 leaves us with 628.
Fetch the next digit (6) from the dividend, attach it to 628 and continue: 6286 / 687

Going ahead to step 8:
687 can be fit into 6286 9 times, resulting in a remainder of 103.
Put 9 as the next digit of the answer. 
Result so far: 114859.0
Subtract 6183 from 6286 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Advancing to step 9:
The number 687 fits into 1030 1 times, leaving a remainder of 343.
The number 1 becomes the next digit in our result. 
Result so far: 114859.1
If we take 687 away from 1030, we end up with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

On to step 10:
If we divide 3430 by 687, we get 4 and a remainder of 682.
Record the quotient 4 as the next digit in the result. 
Result so far: 114859.14
If we subtract 2748 from 3430, we get 682.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6820, and continue the process.

Advancing to step 11:
687 goes into 6820 9 times with a remainder of 637.
Record the quotient 9 as the next digit in the result. 
Result so far: 114859.149
The remainder is 637 after subtracting 6183 from 6820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

On to step 12:
687 goes into 6370 9 times with a remainder of 187.
Record the quotient 9 as the next digit in the result. 
Result so far: 114859.1499
If we subtract 6183 from 6370, we get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

The quotient of the division is 114859.1499, and the remainder is 0.00187.