33031 divided by 21 
We want to figure out the number of times 33031 can be divided by 21.

Advancing to step 1:
If we divide 3 by 21, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 21

On to step 2:
If we divide 33 by 21, we get 1 and a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 21 from 33 and we're left with 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 21

On to step 3:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 15 after subtracting 105 from 120.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 21

Advancing to step 4:
The number 21 fits into 153 7 times, leaving a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 157.0
Subtract 147 from 153 to get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 21

Going ahead to step 5:
The number 21 fits into 61 2 times, leaving a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 1572.0
The remainder is 19 after subtracting 42 from 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 6:
If we divide 190 by 21, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1572.9
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
When dividing 10 by 21, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1572.9
If we take 0 away from 10, we end up with 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 8:
100 divided by 21 is 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 1572.904
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
When dividing 160 by 21, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 1572.9047
Subtracting 147 from 160 leaves us 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.

Advancing to step 10:
If we divide 130 by 21, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 1572.90476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
21 goes into 40 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1572.904761
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.

Going ahead to step 12:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 1572.9047619
The remainder is 1 after subtracting 189 from 190.
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 13:
10 divided by 21 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1572.9047619
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.

Our division results in 1572.9047619 with a remaining 1e-08.