We divide 945091 by 21
We want to divide 945091 by 21.

Let's proceed to step 1:
9 divided by 21 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 21

On to step 2:
The number 21 fits into 94 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 84 away from 94, we end up with 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 21

Let's proceed to step 3:
The number 21 fits into 105 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtracting 105 from 105 leaves us with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 21

Going ahead to step 4:
If we divide 0 by 21, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 450.0
Subtract 0 from 0 to get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 21

Step 5:
21 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 4500.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 21

Going ahead to step 6:
If we divide 91 by 21, we get 4 and a remainder of 7.
The next digit of our result is 4. 
Result so far: 45004.0
Subtracting 84 from 91 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
21 can be fit into 70 3 times, resulting in a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 45004.3
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 8:
21 goes into 70 3 times with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 45004.33
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 45004.33 with a balance of 0.007.