Let's divide 435782 by 21
We want to divide 435782 by 21.

On to step 1:
21 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 21

On to step 2:
When dividing 43 by 21, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 1 after subtracting 42 from 43.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 21

Step 3:
The number 21 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 20.0
The remainder is 15 after subtracting 0 from 15.
Bring next digit (7) of the dividend behind the 15 and repeat the process: 157 / 21

Let's proceed to step 4:
21 goes into 157 7 times with a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 207.0
Subtract 147 from 157 to get 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 21

Let's proceed to step 5:
If we divide 108 by 21, we get 5 and a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 2075.0
Subtract 105 from 108 to get 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 21

On to step 6:
21 can be fit into 32 1 times, resulting in a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 20751.0
If we take 21 away from 32, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
21 goes into 110 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 20751.5
If we take 105 away from 110, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
If we divide 50 by 21, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 20751.52
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
If we divide 80 by 21, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 20751.523
If we take 63 away from 80, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
When dividing 170 by 21, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 20751.5238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
When dividing 20 by 21, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 20751.5238
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 20751.523809
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 13:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 20751.5238095
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
If we divide 50 by 21, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 20751.52380952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 20751.52380952, and the remainder is 8e-09.