We're dividing 985771 by 87 
The aim is to understand the frequency of 87 in 985771.

Let's proceed to step 1:
9 divided by 87 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 87

Let's proceed to step 2:
If we divide 98 by 87, we get 1 and a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 87 away from 98, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 87

Moving on to step 3:
If we divide 115 by 87, we get 1 and a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 87 from 115 to get 28.
Take the next digit (7) from the dividend and append it to 28, then repeat: 287 / 87

Going ahead to step 4:
87 can be fit into 287 3 times, resulting in a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 113.0
Deduct 261 from 287 and we're left with 26.
Append the next digit (7) from the dividend to 26 and continue with: 267 / 87

Advancing to step 5:
87 goes into 267 3 times with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 1133.0
The remainder is 6 after subtracting 261 from 267.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 87

Going ahead to step 6:
61 divided by 87 is 0 with a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 11330.0
Subtracting 0 from 61 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 7:
If we divide 610 by 87, we get 7 and a remainder of 1.
The next digit of our result is 7. 
Result so far: 11330.7
If we take 609 away from 610, we end up 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.

Going ahead to step 8:
When dividing 10 by 87, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 11330.7
Subtract 0 from 10 to get 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 9:
100 divided by 87 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 11330.701
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.

Advancing to step 10:
87 goes into 130 1 times with a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 11330.7011
The remainder is 43 after subtracting 87 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The quotient of the division is 11330.7011, and the remainder is 0.00043.