We're dividing 187487 by 12 
The aim is to understand the frequency of 12 in 187487.

Advancing to step 1:
When dividing 1 by 12, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 12

On to step 2:
If we divide 18 by 12, we get 1 and a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 12 from 18 to get 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 12

On to step 3:
If we divide 67 by 12, we get 5 and a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 60 from 67, we get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 12

Let's proceed to step 4:
74 divided by 12 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 156.0
The remainder is 2 after subtracting 72 from 74.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 12

Advancing to step 5:
The number 12 fits into 28 2 times, leaving a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1562.0
If we take 24 away from 28, we end up with 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 12

On to step 6:
If we divide 47 by 12, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 15623.0
If we take 36 away from 47, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
When dividing 110 by 12, we get 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 15623.9
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
If we divide 20 by 12, we get 1 and a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 15623.91
Subtracting 12 from 20 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 15623.916
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
80 divided by 12 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 15623.9166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 15623.9166 with a remaining 8e-05.