680447 divided by 87 
The aim is to understand the frequency of 87 in 680447.

Going ahead to step 1:
6 divided by 87 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 87

Advancing to step 2:
When dividing 68 by 87, we get 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Include the next digit (0) from the dividend after 68, then repeat: 680 / 87

Going ahead to step 3:
The number 87 fits into 680 7 times, leaving a remainder of 71.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 609 from 680, we get 71.
Fetch the next digit (4) from the dividend, attach it to 71 and continue: 714 / 87

Step 4:
714 divided by 87 is 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtract 696 from 714 to get 18.
Append the next digit (4) from the dividend to 18 and continue with: 184 / 87

Moving on to step 5:
87 can be fit into 184 2 times, resulting in a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 782.0
If we subtract 174 from 184, we get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 87

Step 6:
87 goes into 107 1 times with a remainder of 20.
The next digit of our result is 1. 
Result so far: 7821.0
Deduct 87 from 107 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
The number 87 fits into 200 2 times, leaving a remainder of 26.
Write down 2 as next digit of the result. 
Result so far: 7821.2
The remainder is 26 after subtracting 174 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 8:
If we divide 260 by 87, we get 2 and a remainder of 86.
The next digit of our result is 2. 
Result so far: 7821.22
If we subtract 174 from 260, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final outcome is 7821.22, with a leftover of 0.086.