We look at the division of 57336 by 87 
The aim is to understand the frequency of 87 in 57336.

Step 1:
5 divided by 87 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 87

Moving on to step 2:
57 divided by 87 is 0 with a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 57, we get 57.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 87

Moving on to step 3:
When dividing 573 by 87, we get 6 with a remainder of 51.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 522 from 573 leaves us with 51.
Grab the next digit (3) from the dividend, add it to 51, then carry on: 513 / 87

Advancing to step 4:
87 can be fit into 513 5 times, resulting in a remainder of 78.
Put 5 as the next digit of the answer. 
Result so far: 65.0
The remainder is 78 after subtracting 435 from 513.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 87

Moving on to step 5:
786 divided by 87 is 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 659.0
Deduct 783 from 786 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.

Moving on to step 6:
The number 87 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 659.0
Deduct 0 from 30 and we're left 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.

Let's proceed to step 7:
300 divided by 87 is 3 with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 659.03
If we take 261 away from 300, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 8:
390 divided by 87 is 4 with a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 659.034
Subtracting 348 from 390 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
When dividing 420 by 87, we get 4 with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 659.0344
Subtracting 348 from 420 leaves us with 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 659.0344 and a remainder of 0.00072.