Let's divide 328537 by 21
We're looking to find how many times 21 goes into 328537.

Let's proceed to step 1:
When dividing 3 by 21, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 21

Going ahead to step 2:
The number 21 fits into 32 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 21 from 32 and we're left with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 21

Moving on to step 3:
21 goes into 118 5 times with a remainder of 13.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 105 away from 118, we end up with 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 21

Going ahead to step 4:
If we divide 135 by 21, we get 6 and a remainder of 9.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
The remainder is 9 after subtracting 126 from 135.
Append the next digit (3) from the dividend to 9 and continue with: 93 / 21

On to step 5:
21 can be fit into 93 4 times, resulting in a remainder of 9.
The next digit of our result is 4. 
Result so far: 1564.0
The remainder is 9 after subtracting 84 from 93.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 21

Let's proceed to step 6:
The number 21 fits into 97 4 times, leaving a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 15644.0
Deduct 84 from 97 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
When dividing 130 by 21, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 15644.6
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
21 goes into 40 1 times with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 15644.61
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
21 goes into 190 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 15644.619
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
The number 21 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 15644.619
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 15644.61904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
The number 21 fits into 160 7 times, leaving a remainder of 13.
The next digit of our result is 7. 
Result so far: 15644.619047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 13:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 15644.6190476
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 15644.61904761
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 15644.61904761 with a balance of 1.9e-08.