We divide 21854565 by 843
The aim is to understand the frequency of 843 in 21854565.

Moving on to step 1:
The number 843 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 843

On to step 2:
When dividing 21 by 843, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 843

Moving on to step 3:
If we divide 218 by 843, we get 0 and a remainder of 218.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 218, we end up with 218.
Fetch the next digit (5) from the dividend, attach it to 218 and continue: 2185 / 843

Going ahead to step 4:
843 can be fit into 2185 2 times, resulting in a remainder of 499.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 499 after subtracting 1686 from 2185.
Append the next digit (4) from the dividend to 499 and continue with: 4994 / 843

Going ahead to step 5:
843 goes into 4994 5 times with a remainder of 779.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Deduct 4215 from 4994 and we're left with 779.
Grab the next digit (5) from the dividend, add it to 779, then carry on: 7795 / 843

Step 6:
When dividing 7795 by 843, we get 9 with a remainder of 208.
Record the quotient 9 as the next digit in the result. 
Result so far: 259.0
The remainder is 208 after subtracting 7587 from 7795.
Grab the next digit (6) from the dividend, add it to 208, then carry on: 2086 / 843

On to step 7:
If we divide 2086 by 843, we get 2 and a remainder of 400.
Use 2 as the next digit of our solution. 
Result so far: 2592.0
Subtract 1686 from 2086 to get 400.
Bring next digit (5) of the dividend behind the 400 and repeat the process: 4005 / 843

On to step 8:
If we divide 4005 by 843, we get 4 and a remainder of 633.
Record the quotient 4 as the next digit in the result. 
Result so far: 25924.0
If we subtract 3372 from 4005, we get 633.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6330, and continue the process.

On to step 9:
6330 divided by 843 is 7 with a remainder of 429.
Use 7 as the next digit of our solution. 
Result so far: 25924.7
If we take 5901 away from 6330, we end up with 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Advancing to step 10:
843 can be fit into 4290 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 25924.75
If we take 4215 away from 4290, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 11:
The number 843 fits into 750 0 times, leaving a remainder of 750.
Put 0 as the next digit of the answer. 
Result so far: 25924.75
Subtract 0 from 750 to get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Let's proceed to step 12:
843 can be fit into 7500 8 times, resulting in a remainder of 756.
Use 8 as the next digit of our solution. 
Result so far: 25924.7508
Subtracting 6744 from 7500 leaves us with 756.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7560, and continue the process.

Moving on to step 13:
The number 843 fits into 7560 8 times, leaving a remainder of 816.
The next digit of our result is 8. 
Result so far: 25924.75088
If we subtract 6744 from 7560, we get 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

The quotient of the division is 25924.75088, and the remainder is 0.000816.