473439 divided by 21 
Let's see how many times 21 fits into 473439.

Step 1:
21 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 21

Step 2:
47 divided by 21 is 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 5 after subtracting 42 from 47.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 21

Advancing to step 3:
21 can be fit into 53 2 times, resulting in a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 22.0
Subtracting 42 from 53 leaves us with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 21

Step 4:
21 goes into 114 5 times with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 225.0
If we take 105 away from 114, we end up with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 21

Going ahead to step 5:
93 divided by 21 is 4 with a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 2254.0
If we take 84 away from 93, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 21

Moving on to step 6:
99 divided by 21 is 4 with a remainder of 15.
The number 4 becomes the next digit in our result. 
Result so far: 22544.0
Subtract 84 from 99 to 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.

Advancing to step 7:
21 goes into 150 7 times with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 22544.7
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 8:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 22544.71
Subtracting 21 from 30 leaves us 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.

Going ahead to step 9:
If we divide 90 by 21, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 22544.714
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.

Let's proceed to step 10:
60 divided by 21 is 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 22544.7142
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.

Step 11:
If we divide 180 by 21, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 22544.71428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
120 divided by 21 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 22544.714285
Subtract 105 from 120 to 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 13:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The next digit of our result is 7. 
Result so far: 22544.7142857
The remainder is 3 after subtracting 147 from 150.
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 14:
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: 22544.71428571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

In conclusion, the division gives 22544.71428571 with a balance of 9e-09.