We're dividing 732287 by 21 
We want to figure out the number of times 732287 can be divided by 21.

On to step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 21

Moving on to step 2:
When dividing 73 by 21, we get 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 63 away from 73, we end up with 10.
Append the next digit (2) from the dividend to 10 and continue with: 102 / 21

Moving on to step 3:
The number 21 fits into 102 4 times, leaving a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Subtract 84 from 102 to get 18.
Grab the next digit (2) from the dividend, add it to 18, then carry on: 182 / 21

Advancing to step 4:
21 goes into 182 8 times with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 348.0
The remainder is 14 after subtracting 168 from 182.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 21

Let's proceed to step 5:
21 can be fit into 148 7 times, resulting in a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 3487.0
The remainder is 1 after subtracting 147 from 148.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 21

Advancing to step 6:
17 divided by 21 is 0 with a remainder of 17.
The next digit of our result is 0. 
Result so far: 34870.0
If we subtract 0 from 17, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
When dividing 170 by 21, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 34870.8
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
When dividing 20 by 21, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 34870.8
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 34870.809
Deduct 189 from 200 and we're left 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.

Step 10:
21 goes into 110 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 34870.8095
Subtracting 105 from 110 leaves us 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.

Advancing to step 11:
If we divide 50 by 21, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 34870.80952
Deduct 42 from 50 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 21, we get 3 and a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 34870.809523
Subtracting 63 from 80 leaves us 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.

Going ahead to step 13:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 34870.8095238
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 14:
When dividing 20 by 21, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 34870.8095238
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 34870.8095238 with a remainder of 2e-08.