We're dividing 768636 by 87 
The aim is to understand the frequency of 87 in 768636.

Going ahead to step 1:
If we divide 7 by 87, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 87

On to step 2:
The number 87 fits into 76 0 times, leaving a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Include the next digit (8) from the dividend after 76, then repeat: 768 / 87

Step 3:
The number 87 fits into 768 8 times, leaving a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 72 after subtracting 696 from 768.
Append the next digit (6) from the dividend to 72 and continue with: 726 / 87

Going ahead to step 4:
726 divided by 87 is 8 with a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 88.0
The remainder is 30 after subtracting 696 from 726.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 87

Going ahead to step 5:
When dividing 303 by 87, we get 3 with a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 883.0
Subtracting 261 from 303 leaves us with 42.
Bring next digit (6) of the dividend behind the 42 and repeat the process: 426 / 87

Going ahead to step 6:
87 goes into 426 4 times with a remainder of 78.
Use 4 as the next digit of our solution. 
Result so far: 8834.0
Subtract 348 from 426 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.

Moving on to step 7:
87 can be fit into 780 8 times, resulting in a remainder of 84.
The next digit of our result is 8. 
Result so far: 8834.8
The remainder is 84 after subtracting 696 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 8:
When dividing 840 by 87, we get 9 with a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 8834.89
Deduct 783 from 840 and we're left 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.

Advancing to step 9:
570 divided by 87 is 6 with a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 8834.896
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.

Step 10:
The number 87 fits into 480 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 8834.8965
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.

Step 11:
87 goes into 450 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 8834.89655
The remainder is 15 after subtracting 435 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 8834.89655 with a remaining 1.5e-05.