249345 divided by 81 
The aim is to understand the frequency of 81 in 249345.

Let's proceed to step 1:
81 goes into 2 0 times 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.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 81

Let's proceed to step 2:
The number 81 fits into 24 0 times, leaving a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Include the next digit (9) from the dividend after 24, then repeat: 249 / 81

Let's proceed to step 3:
81 goes into 249 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 6 after subtracting 243 from 249.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 81

Advancing to step 4:
When dividing 63 by 81, we get 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 30.0
If we take 0 away from 63, we end up with 63.
Append the next digit (4) from the dividend to 63 and continue with: 634 / 81

Step 5:
81 can be fit into 634 7 times, resulting in a remainder of 67.
Put 7 as the next digit of the answer. 
Result so far: 307.0
Subtract 567 from 634 to get 67.
Take the next digit (5) from the dividend and append it to 67, then repeat: 675 / 81

Going ahead to step 6:
675 divided by 81 is 8 with a remainder of 27.
Use 8 as the next digit of our solution. 
Result so far: 3078.0
Deduct 648 from 675 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.

Moving on to step 7:
The number 81 fits into 270 3 times, leaving a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 3078.3
If we subtract 243 from 270, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 8:
When dividing 270 by 81, we get 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 3078.33
Subtracting 243 from 270 leaves us 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.

The quotient of the division is 3078.33, and the remainder is 0.027.