We're dividing 671978 by 87 
The aim is to understand the frequency of 87 in 671978.

Advancing to step 1:
87 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 87

Let's proceed to step 2:
67 divided by 87 is 0 with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Grab the next digit (1) from the dividend, add it to 67, then carry on: 671 / 87

Let's proceed to step 3:
If we divide 671 by 87, we get 7 and a remainder of 62.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 609 from 671 and we're left with 62.
Bring next digit (9) of the dividend behind the 62 and repeat the process: 629 / 87

Let's proceed to step 4:
629 divided by 87 is 7 with a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 77.0
The remainder is 20 after subtracting 609 from 629.
Take the next digit (7) from the dividend and append it to 20, then repeat: 207 / 87

Going ahead to step 5:
207 divided by 87 is 2 with a remainder of 33.
Record the quotient 2 as the next digit in the result. 
Result so far: 772.0
Subtracting 174 from 207 leaves us with 33.
Include the next digit (8) from the dividend after 33, then repeat: 338 / 87

Going ahead to step 6:
87 goes into 338 3 times with a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 7723.0
Subtract 261 from 338 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 7:
The number 87 fits into 770 8 times, leaving a remainder of 74.
The next digit of our result is 8. 
Result so far: 7723.8
If we subtract 696 from 770, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 8:
The number 87 fits into 740 8 times, leaving a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 7723.88
If we take 696 away from 740, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

After the division, we end up with 7723.88 and a remainder of 0.044.