387544 divided by 85 
The aim is to understand the frequency of 85 in 387544.

Let's proceed to step 1:
If we divide 3 by 85, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 85

Advancing to step 2:
If we divide 38 by 85, we get 0 and a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Append the next digit (7) from the dividend to 38 and continue with: 387 / 85

Step 3:
The number 85 fits into 387 4 times, leaving a remainder of 47.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 47 after subtracting 340 from 387.
Fetch the next digit (5) from the dividend, attach it to 47 and continue: 475 / 85

Step 4:
The number 85 fits into 475 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
If we subtract 425 from 475, we get 50.
Fetch the next digit (4) from the dividend, attach it to 50 and continue: 504 / 85

Let's proceed to step 5:
The number 85 fits into 504 5 times, leaving a remainder of 79.
The next digit of our result is 5. 
Result so far: 455.0
The remainder is 79 after subtracting 425 from 504.
Take the next digit (4) from the dividend and append it to 79, then repeat: 794 / 85

Advancing to step 6:
If we divide 794 by 85, we get 9 and a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 4559.0
Deduct 765 from 794 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 7:
85 goes into 290 3 times with a remainder of 35.
Put 3 as the next digit of the answer. 
Result so far: 4559.3
Deduct 255 from 290 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
The number 85 fits into 350 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4559.34
The remainder is 10 after subtracting 340 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
100 divided by 85 is 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 4559.341
If we subtract 85 from 100, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
85 can be fit into 150 1 times, resulting in a remainder of 65.
Use 1 as the next digit of our solution. 
Result so far: 4559.3411
Deduct 85 from 150 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 4559.3411 with a remainder of 0.00065.