We're dividing 99870648 by 281 
The aim is to understand the frequency of 281 in 99870648.

Let's proceed to step 1:
If we divide 9 by 281, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 281

Moving on to step 2:
If we divide 99 by 281, we get 0 and a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 99, we get 99.
Append the next digit (8) from the dividend to 99 and continue with: 998 / 281

On to step 3:
281 can be fit into 998 3 times, resulting in a remainder of 155.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 843 from 998, we get 155.
Grab the next digit (7) from the dividend, add it to 155, then carry on: 1557 / 281

Advancing to step 4:
The number 281 fits into 1557 5 times, leaving a remainder of 152.
The next digit of our result is 5. 
Result so far: 35.0
If we take 1405 away from 1557, we end up with 152.
Grab the next digit (0) from the dividend, add it to 152, then carry on: 1520 / 281

On to step 5:
When dividing 1520 by 281, we get 5 with a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 355.0
Subtracting 1405 from 1520 leaves us with 115.
Take the next digit (6) from the dividend and append it to 115, then repeat: 1156 / 281

Advancing to step 6:
The number 281 fits into 1156 4 times, leaving a remainder of 32.
The next digit of our result is 4. 
Result so far: 3554.0
Subtracting 1124 from 1156 leaves us with 32.
Append the next digit (4) from the dividend to 32 and continue with: 324 / 281

Let's proceed to step 7:
The number 281 fits into 324 1 times, leaving a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 35541.0
Subtracting 281 from 324 leaves us with 43.
Fetch the next digit (8) from the dividend, attach it to 43 and continue: 438 / 281

Going ahead to step 8:
281 can be fit into 438 1 times, resulting in a remainder of 157.
Write down 1 as next digit of the result. 
Result so far: 355411.0
Subtract 281 from 438 to get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Moving on to step 9:
281 goes into 1570 5 times with a remainder of 165.
The next digit of our result is 5. 
Result so far: 355411.5
If we subtract 1405 from 1570, we get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Going ahead to step 10:
The number 281 fits into 1650 5 times, leaving a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 355411.55
The remainder is 245 after subtracting 1405 from 1650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Our division results in 355411.55 with a remaining 0.245.