We're dividing 778002 by 87 
The aim is to understand the frequency of 87 in 778002.

Let's proceed to step 1:
If we divide 7 by 87, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 87

Step 2:
The number 87 fits into 77 0 times, leaving a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Grab the next digit (8) from the dividend, add it to 77, then carry on: 778 / 87

Advancing to step 3:
778 divided by 87 is 8 with a remainder of 82.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 696 from 778 to get 82.
Bring next digit (0) of the dividend behind the 82 and repeat the process: 820 / 87

Advancing to step 4:
87 goes into 820 9 times with a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 89.0
The remainder is 37 after subtracting 783 from 820.
Fetch the next digit (0) from the dividend, attach it to 37 and continue: 370 / 87

Step 5:
370 divided by 87 is 4 with a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 894.0
Subtract 348 from 370 to get 22.
Include the next digit (2) from the dividend after 22, then repeat: 222 / 87

Step 6:
222 divided by 87 is 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 8942.0
Deduct 174 from 222 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 7:
87 can be fit into 480 5 times, resulting in a remainder of 45.
The next digit of our result is 5. 
Result so far: 8942.5
The remainder is 45 after subtracting 435 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 8:
If we divide 450 by 87, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 8942.55
If we take 435 away from 450, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 8942.55, with a leftover of 0.015.