We look at the division of 682370 by 87 
The aim is to understand the frequency of 87 in 682370.

Going ahead to step 1:
87 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 87

Advancing to step 2:
68 divided by 87 is 0 with a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Fetch the next digit (2) from the dividend, attach it to 68 and continue: 682 / 87

Going ahead to step 3:
When dividing 682 by 87, we get 7 with a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 609 from 682, we get 73.
Take the next digit (3) from the dividend and append it to 73, then repeat: 733 / 87

Going ahead to step 4:
87 goes into 733 8 times with a remainder of 37.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Deduct 696 from 733 and we're left with 37.
Append the next digit (7) from the dividend to 37 and continue with: 377 / 87

Step 5:
When dividing 377 by 87, we get 4 with a remainder of 29.
Record the quotient 4 as the next digit in the result. 
Result so far: 784.0
Subtract 348 from 377 to get 29.
Bring next digit (0) of the dividend behind the 29 and repeat the process: 290 / 87

On to step 6:
The number 87 fits into 290 3 times, leaving a remainder of 29.
Write down 3 as next digit of the result. 
Result so far: 7843.0
Subtracting 261 from 290 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 7:
87 goes into 290 3 times with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 7843.3
If we subtract 261 from 290, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 8:
87 can be fit into 290 3 times, resulting in a remainder of 29.
Put 3 as the next digit of the answer. 
Result so far: 7843.33
The remainder is 29 after subtracting 261 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

After the division, we end up with 7843.33 and a remainder of 0.029.