81135093 ÷ 250 
The aim is to understand the frequency of 250 in 81135093.

Step 1:
250 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 250

Advancing to step 2:
When dividing 81 by 250, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 250

Advancing to step 3:
811 divided by 250 is 3 with a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 750 from 811, we get 61.
Grab the next digit (3) from the dividend, add it to 61, then carry on: 613 / 250

Going ahead to step 4:
250 goes into 613 2 times with a remainder of 113.
The number 2 becomes the next digit in our result. 
Result so far: 32.0
If we subtract 500 from 613, we get 113.
Fetch the next digit (5) from the dividend, attach it to 113 and continue: 1135 / 250

Step 5:
If we divide 1135 by 250, we get 4 and a remainder of 135.
Put 4 as the next digit of the answer. 
Result so far: 324.0
Deduct 1000 from 1135 and we're left with 135.
Take the next digit (0) from the dividend and append it to 135, then repeat: 1350 / 250

Moving on to step 6:
250 can be fit into 1350 5 times, resulting in a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 3245.0
If we subtract 1250 from 1350, we get 100.
Fetch the next digit (9) from the dividend, attach it to 100 and continue: 1009 / 250

Going ahead to step 7:
When dividing 1009 by 250, we get 4 with a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 32454.0
Subtract 1000 from 1009 to get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 250

Advancing to step 8:
If we divide 93 by 250, we get 0 and a remainder of 93.
The next digit of our result is 0. 
Result so far: 324540.0
If we subtract 0 from 93, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 9:
The number 250 fits into 930 3 times, leaving a remainder of 180.
Record the quotient 3 as the next digit in the result. 
Result so far: 324540.3
Deduct 750 from 930 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
If we divide 1800 by 250, we get 7 and a remainder of 50.
The number 7 becomes the next digit in our result. 
Result so far: 324540.37
If we take 1750 away from 1800, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
250 goes into 500 2 times with a remainder of 0.
The next digit of our result is 2. 
Result so far: 324540.372
If we take 500 away from 500, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
250 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 324540.372
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 13:
The number 250 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 324540.372
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 324540.372 and a remainder of 0.0.