We divide 248213 by 87
The aim is to understand the frequency of 87 in 248213.

On to step 1:
2 divided by 87 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 87

Step 2:
When dividing 24 by 87, we get 0 with a remainder of 24.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 24 to get 24.
Include the next digit (8) from the dividend after 24, then repeat: 248 / 87

Let's proceed to step 3:
248 divided by 87 is 2 with a remainder of 74.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 174 from 248 and we're left with 74.
Grab the next digit (2) from the dividend, add it to 74, then carry on: 742 / 87

Moving on to step 4:
87 goes into 742 8 times with a remainder of 46.
The next digit of our result is 8. 
Result so far: 28.0
The remainder is 46 after subtracting 696 from 742.
Grab the next digit (1) from the dividend, add it to 46, then carry on: 461 / 87

Moving on to step 5:
If we divide 461 by 87, we get 5 and a remainder of 26.
The next digit of our result is 5. 
Result so far: 285.0
Deduct 435 from 461 and we're left with 26.
Bring next digit (3) of the dividend behind the 26 and repeat the process: 263 / 87

Going ahead to step 6:
When dividing 263 by 87, we get 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 2853.0
Deduct 261 from 263 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
20 divided by 87 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 2853.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
87 can be fit into 200 2 times, resulting in a remainder of 26.
Record the quotient 2 as the next digit in the result. 
Result so far: 2853.02
Deduct 174 from 200 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
If we divide 260 by 87, we get 2 and a remainder of 86.
Record the quotient 2 as the next digit in the result. 
Result so far: 2853.022
Subtracting 174 from 260 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final outcome is 2853.022, with a leftover of 0.0086.