We look at the division of 301200 by 87 
The aim is to understand the frequency of 87 in 301200.

Let's proceed to step 1:
The number 87 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 87

Step 2:
If we divide 30 by 87, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (1) from the dividend after 30, then repeat: 301 / 87

Moving on to step 3:
The number 87 fits into 301 3 times, leaving a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 261 from 301 to get 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 87

On to step 4:
If we divide 402 by 87, we get 4 and a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 34.0
Deduct 348 from 402 and we're left with 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 87

Advancing to step 5:
87 goes into 540 6 times with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 346.0
Subtract 522 from 540 to get 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 87

On to step 6:
87 can be fit into 180 2 times, resulting in a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 3462.0
The remainder is 6 after subtracting 174 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
87 goes into 60 0 times with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 3462.0
Subtracting 0 from 60 leaves us 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 8:
If we divide 600 by 87, we get 6 and a remainder of 78.
The next digit of our result is 6. 
Result so far: 3462.06
If we take 522 away from 600, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 9:
If we divide 780 by 87, we get 8 and a remainder of 84.
The next digit of our result is 8. 
Result so far: 3462.068
Subtract 696 from 780 to 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.

Let's proceed to step 10:
87 goes into 840 9 times with a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 3462.0689
Subtract 783 from 840 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 11:
570 divided by 87 is 6 with a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 3462.06896
The remainder is 48 after subtracting 522 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
480 divided by 87 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 3462.068965
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.

Advancing to step 13:
The number 87 fits into 450 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 3462.0689655
Deduct 435 from 450 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 3462.0689655 with a remainder of 1.5e-07.