We divide 432855 by 21
We want to divide 432855 by 21.

Let's proceed to step 1:
4 divided by 21 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 21

Step 2:
The number 21 fits into 43 2 times, leaving a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 1 after subtracting 42 from 43.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 21

Let's proceed to step 3:
21 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 21

Going ahead to step 4:
If we divide 128 by 21, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 206.0
Subtract 126 from 128 to get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 21

Going ahead to step 5:
If we divide 25 by 21, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 2061.0
Deduct 21 from 25 and we're left with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 21

Step 6:
21 goes into 45 2 times with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 20612.0
The remainder is 3 after subtracting 42 from 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
When dividing 30 by 21, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 20612.1
Deduct 21 from 30 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 8:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 20612.14
Subtracting 84 from 90 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 9:
When dividing 60 by 21, we get 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 20612.142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 10:
When dividing 180 by 21, we get 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 20612.1428
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 11:
21 goes into 120 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 20612.14285
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 12:
21 goes into 150 7 times with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 20612.142857
Subtracting 147 from 150 leaves us 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 13:
When dividing 30 by 21, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 20612.1428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 14:
21 can be fit into 90 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 20612.14285714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 20612.14285714 with a remainder of 6e-09.