21442901 ÷ 456 
Let's see how many times 456 fits into 21442901.

Moving on to step 1:
If we divide 2 by 456, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 456

Step 2:
If we divide 21 by 456, we get 0 and a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 456

Step 3:
456 goes into 214 0 times with a remainder of 214.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 214 leaves us with 214.
Take the next digit (4) from the dividend and append it to 214, then repeat: 2144 / 456

Moving on to step 4:
456 goes into 2144 4 times with a remainder of 320.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 1824 away from 2144, we end up with 320.
Append the next digit (2) from the dividend to 320 and continue with: 3202 / 456

On to step 5:
If we divide 3202 by 456, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtract 3192 from 3202 to get 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 456

On to step 6:
456 can be fit into 109 0 times, resulting in a remainder of 109.
The number 0 becomes the next digit in our result. 
Result so far: 470.0
If we take 0 away from 109, we end up with 109.
Grab the next digit (0) from the dividend, add it to 109, then carry on: 1090 / 456

On to step 7:
When dividing 1090 by 456, we get 2 with a remainder of 178.
The number 2 becomes the next digit in our result. 
Result so far: 4702.0
If we take 912 away from 1090, we end up with 178.
Take the next digit (1) from the dividend and append it to 178, then repeat: 1781 / 456

Advancing to step 8:
1781 divided by 456 is 3 with a remainder of 413.
Record the quotient 3 as the next digit in the result. 
Result so far: 47023.0
Subtracting 1368 from 1781 leaves us with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Let's proceed to step 9:
When dividing 4130 by 456, we get 9 with a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 47023.9
If we take 4104 away from 4130, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 10:
456 can be fit into 260 0 times, resulting in a remainder of 260.
The next digit of our result is 0. 
Result so far: 47023.9
The remainder is 260 after subtracting 0 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 11:
456 can be fit into 2600 5 times, resulting in a remainder of 320.
Record the quotient 5 as the next digit in the result. 
Result so far: 47023.905
Subtract 2280 from 2600 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 12:
When dividing 3200 by 456, we get 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 47023.9057
If we subtract 3192 from 3200, 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.

Moving on to step 13:
456 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 47023.9057
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
800 divided by 456 is 1 with a remainder of 344.
Write down 1 as next digit of the result. 
Result so far: 47023.905701
Subtract 456 from 800 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 15:
456 can be fit into 3440 7 times, resulting in a remainder of 248.
Put 7 as the next digit of the answer. 
Result so far: 47023.9057017
If we take 3192 away from 3440, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 16:
2480 divided by 456 is 5 with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 47023.90570175
Subtracting 2280 from 2480 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 47023.90570175 with a remainder of 2e-07.