We're dividing 44585720 by 21 
Our goal is to divide 44585720 by 21.

Moving on to step 1:
When dividing 4 by 21, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 21

Let's proceed to step 2:
The number 21 fits into 44 2 times, leaving a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 42 from 44 leaves us with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 21

Going ahead to step 3:
When dividing 25 by 21, we get 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 4 after subtracting 21 from 25.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 21

Going ahead to step 4:
When dividing 48 by 21, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 212.0
If we take 42 away from 48, we end up with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 21

Going ahead to step 5:
The number 21 fits into 65 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 2123.0
Deduct 63 from 65 and we're left with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 21

Step 6:
The number 21 fits into 27 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 21231.0
Deduct 21 from 27 and we're left with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 21

Moving on to step 7:
When dividing 62 by 21, we get 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 212312.0
Subtracting 42 from 62 leaves us with 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 21

Going ahead to step 8:
21 goes into 200 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 2123129.0
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.

Moving on to step 9:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 2123129.5
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
21 can be fit into 50 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2123129.52
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
21 goes into 80 3 times with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 2123129.523
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 12:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 2123129.5238
If we take 168 away from 170, we end up 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.

Let's proceed to step 13:
The number 21 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 2123129.5238
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.

Moving on to step 14:
The number 21 fits into 200 9 times, leaving a remainder of 11.
The next digit of our result is 9. 
Result so far: 2123129.523809
Subtract 189 from 200 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 15:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 2123129.5238095
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.

Step 16:
21 goes into 50 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2123129.52380952
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.

The final outcome is 2123129.52380952, with a leftover of 8e-09.