Let's divide 21230853 by 843
Let's see how many times 843 fits into 21230853.

Step 1:
If we divide 2 by 843, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 843

Step 2:
843 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 843

Let's proceed to step 3:
The number 843 fits into 212 0 times, leaving a remainder of 212.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 212 leaves us with 212.
Fetch the next digit (3) from the dividend, attach it to 212 and continue: 2123 / 843

Let's proceed to step 4:
2123 divided by 843 is 2 with a remainder of 437.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1686 from 2123 and we're left with 437.
Append the next digit (0) from the dividend to 437 and continue with: 4370 / 843

On to step 5:
843 goes into 4370 5 times with a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
The remainder is 155 after subtracting 4215 from 4370.
Fetch the next digit (8) from the dividend, attach it to 155 and continue: 1558 / 843

Advancing to step 6:
843 can be fit into 1558 1 times, resulting in a remainder of 715.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Subtracting 843 from 1558 leaves us with 715.
Bring next digit (5) of the dividend behind the 715 and repeat the process: 7155 / 843

Advancing to step 7:
7155 divided by 843 is 8 with a remainder of 411.
Record the quotient 8 as the next digit in the result. 
Result so far: 2518.0
Subtract 6744 from 7155 to get 411.
Bring next digit (3) of the dividend behind the 411 and repeat the process: 4113 / 843

Going ahead to step 8:
When dividing 4113 by 843, we get 4 with a remainder of 741.
Use 4 as the next digit of our solution. 
Result so far: 25184.0
Deduct 3372 from 4113 and we're left with 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Advancing to step 9:
The number 843 fits into 7410 8 times, leaving a remainder of 666.
Put 8 as the next digit of the answer. 
Result so far: 25184.8
If we subtract 6744 from 7410, we get 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Step 10:
The number 843 fits into 6660 7 times, leaving a remainder of 759.
Write down 7 as next digit of the result. 
Result so far: 25184.87
If we subtract 5901 from 6660, we get 759.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7590, and continue the process.

Let's proceed to step 11:
843 goes into 7590 9 times with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 25184.879
Deduct 7587 from 7590 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 12:
843 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 25184.879
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
When dividing 300 by 843, we get 0 with a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 25184.879
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final result is 25184.879 with a remainder of 0.0003.