We look at the division of 44583 by 21 
We want to figure out the number of times 44583 can be divided by 21.

Let's proceed to step 1:
The number 21 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 21

Moving on to step 2:
When dividing 44 by 21, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 42 from 44, we get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 21

Step 3:
When dividing 25 by 21, we get 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Deduct 21 from 25 and we're left with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 21

Going ahead to step 4:
If we divide 48 by 21, we get 2 and a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 212.0
Subtracting 42 from 48 leaves us with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 21

On to step 5:
21 goes into 63 3 times with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 2123.0
If we subtract 63 from 63, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 6:
The number 21 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2123.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
21 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 2123.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 2123.0, with a leftover of 0.0.