We look at the division of 238668 by 87 
The aim is to understand the frequency of 87 in 238668.

Step 1:
2 divided by 87 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 87

Advancing to step 2:
When dividing 23 by 87, we get 0 with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 23, we end up with 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 87

Let's proceed to step 3:
If we divide 238 by 87, we get 2 and a remainder of 64.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 174 from 238 to get 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 87

Step 4:
87 can be fit into 646 7 times, resulting in a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 609 away from 646, we end up with 37.
Take the next digit (6) from the dividend and append it to 37, then repeat: 376 / 87

On to step 5:
When dividing 376 by 87, we get 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 274.0
The remainder is 28 after subtracting 348 from 376.
Include the next digit (8) from the dividend after 28, then repeat: 288 / 87

Going ahead to step 6:
288 divided by 87 is 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 2743.0
Deduct 261 from 288 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
The number 87 fits into 270 3 times, leaving a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 2743.3
Subtracting 261 from 270 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 8:
When dividing 90 by 87, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 2743.31
Deduct 87 from 90 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
87 can be fit into 30 0 times, resulting in a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 2743.31
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
When dividing 300 by 87, we get 3 with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 2743.3103
The remainder is 39 after subtracting 261 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 11:
87 can be fit into 390 4 times, resulting in a remainder of 42.
The number 4 becomes the next digit in our result. 
Result so far: 2743.31034
The remainder is 42 after subtracting 348 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
420 divided by 87 is 4 with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 2743.310344
If we subtract 348 from 420, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 2743.310344 and a remainder of 7.2e-06.