We look at the division of 568894 by 87 
The aim is to understand the frequency of 87 in 568894.

Advancing to step 1:
The number 87 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 87

Step 2:
When dividing 56 by 87, we get 0 with a remainder of 56.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 56, we end up with 56.
Take the next digit (8) from the dividend and append it to 56, then repeat: 568 / 87

On to step 3:
568 divided by 87 is 6 with a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 522 from 568, we get 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 87

Advancing to step 4:
87 can be fit into 468 5 times, resulting in a remainder of 33.
Put 5 as the next digit of the answer. 
Result so far: 65.0
The remainder is 33 after subtracting 435 from 468.
Append the next digit (9) from the dividend to 33 and continue with: 339 / 87

Moving on to step 5:
The number 87 fits into 339 3 times, leaving a remainder of 78.
Put 3 as the next digit of the answer. 
Result so far: 653.0
Subtract 261 from 339 to get 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 87

Step 6:
When dividing 784 by 87, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 6539.0
Deduct 783 from 784 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 87, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 6539.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 87, we get 1 with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 6539.01
If we subtract 87 from 100, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
The number 87 fits into 130 1 times, leaving a remainder of 43.
The next digit of our result is 1. 
Result so far: 6539.011
If we take 87 away from 130, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

After the division, we end up with 6539.011 and a remainder of 0.0043.