We're dividing 78451690 by 687 
The aim is to understand the frequency of 687 in 78451690.

Advancing to step 1:
687 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 687

Step 2:
687 can be fit into 78 0 times, resulting in a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Take the next digit (4) from the dividend and append it to 78, then repeat: 784 / 687

Advancing to step 3:
784 divided by 687 is 1 with a remainder of 97.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 687 from 784 leaves us with 97.
Take the next digit (5) from the dividend and append it to 97, then repeat: 975 / 687

Moving on to step 4:
975 divided by 687 is 1 with a remainder of 288.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 687 from 975, we get 288.
Fetch the next digit (1) from the dividend, attach it to 288 and continue: 2881 / 687

On to step 5:
687 goes into 2881 4 times with a remainder of 133.
Write down 4 as next digit of the result. 
Result so far: 114.0
Subtracting 2748 from 2881 leaves us with 133.
Bring next digit (6) of the dividend behind the 133 and repeat the process: 1336 / 687

Step 6:
If we divide 1336 by 687, we get 1 and a remainder of 649.
Use 1 as the next digit of our solution. 
Result so far: 1141.0
The remainder is 649 after subtracting 687 from 1336.
Fetch the next digit (9) from the dividend, attach it to 649 and continue: 6499 / 687

On to step 7:
When dividing 6499 by 687, we get 9 with a remainder of 316.
The number 9 becomes the next digit in our result. 
Result so far: 11419.0
The remainder is 316 after subtracting 6183 from 6499.
Include the next digit (0) from the dividend after 316, then repeat: 3160 / 687

Let's proceed to step 8:
3160 divided by 687 is 4 with a remainder of 412.
Put 4 as the next digit of the answer. 
Result so far: 114194.0
Subtract 2748 from 3160 to get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 9:
687 can be fit into 4120 5 times, resulting in a remainder of 685.
Use 5 as the next digit of our solution. 
Result so far: 114194.5
If we take 3435 away from 4120, we end up with 685.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6850, and continue the process.

Let's proceed to step 10:
6850 divided by 687 is 9 with a remainder of 667.
The next digit of our result is 9. 
Result so far: 114194.59
Subtracting 6183 from 6850 leaves us with 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6670, and continue the process.

Step 11:
6670 divided by 687 is 9 with a remainder of 487.
Write down 9 as next digit of the result. 
Result so far: 114194.599
If we subtract 6183 from 6670, we get 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

In conclusion, the division gives 114194.599 with a balance of 0.0487.