We look at the division of 968886 by 87 
The aim is to understand the frequency of 87 in 968886.

Advancing to step 1:
The number 87 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 87

Moving on to step 2:
87 goes into 96 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 87 away from 96, we end up with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 87

Let's proceed to step 3:
The number 87 fits into 98 1 times, leaving a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 11.0
Deduct 87 from 98 and we're left with 11.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 87

Going ahead to step 4:
118 divided by 87 is 1 with a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 111.0
The remainder is 31 after subtracting 87 from 118.
Take the next digit (8) from the dividend and append it to 31, then repeat: 318 / 87

Let's proceed to step 5:
If we divide 318 by 87, we get 3 and a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 1113.0
If we subtract 261 from 318, we get 57.
Grab the next digit (6) from the dividend, add it to 57, then carry on: 576 / 87

Let's proceed to step 6:
87 goes into 576 6 times with a remainder of 54.
The next digit of our result is 6. 
Result so far: 11136.0
Deduct 522 from 576 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
87 can be fit into 540 6 times, resulting in a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 11136.6
If we take 522 away from 540, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
180 divided by 87 is 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 11136.62
If we take 174 away from 180, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
When dividing 60 by 87, we get 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 11136.62
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 10:
If we divide 600 by 87, we get 6 and a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 11136.6206
Subtract 522 from 600 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 11:
780 divided by 87 is 8 with a remainder of 84.
The next digit of our result is 8. 
Result so far: 11136.62068
If we subtract 696 from 780, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
840 divided by 87 is 9 with a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 11136.620689
If we take 783 away from 840, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 13:
87 goes into 570 6 times with a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 11136.6206896
Subtract 522 from 570 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 14:
When dividing 480 by 87, we get 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 11136.62068965
Subtracting 435 from 480 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final outcome is 11136.62068965, with a leftover of 4.5e-08.