21159021 divided by 447 
We're looking to find how many times 447 goes into 21159021.

Going ahead to step 1:
When dividing 2 by 447, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 447

On to step 2:
21 divided by 447 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Fetch the next digit (1) from the dividend, attach it to 21 and continue: 211 / 447

Advancing to step 3:
211 divided by 447 is 0 with a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Grab the next digit (5) from the dividend, add it to 211, then carry on: 2115 / 447

Moving on to step 4:
When dividing 2115 by 447, we get 4 with a remainder of 327.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 1788 from 2115 to get 327.
Include the next digit (9) from the dividend after 327, then repeat: 3279 / 447

Going ahead to step 5:
When dividing 3279 by 447, we get 7 with a remainder of 150.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
The remainder is 150 after subtracting 3129 from 3279.
Grab the next digit (0) from the dividend, add it to 150, then carry on: 1500 / 447

Let's proceed to step 6:
If we divide 1500 by 447, we get 3 and a remainder of 159.
Put 3 as the next digit of the answer. 
Result so far: 473.0
If we subtract 1341 from 1500, we get 159.
Append the next digit (2) from the dividend to 159 and continue with: 1592 / 447

On to step 7:
The number 447 fits into 1592 3 times, leaving a remainder of 251.
Put 3 as the next digit of the answer. 
Result so far: 4733.0
The remainder is 251 after subtracting 1341 from 1592.
Grab the next digit (1) from the dividend, add it to 251, then carry on: 2511 / 447

Step 8:
If we divide 2511 by 447, we get 5 and a remainder of 276.
Use 5 as the next digit of our solution. 
Result so far: 47335.0
If we subtract 2235 from 2511, we get 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Advancing to step 9:
When dividing 2760 by 447, we get 6 with a remainder of 78.
Put 6 as the next digit of the answer. 
Result so far: 47335.6
Subtract 2682 from 2760 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 10:
780 divided by 447 is 1 with a remainder of 333.
Record the quotient 1 as the next digit in the result. 
Result so far: 47335.61
Deduct 447 from 780 and we're left with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Advancing to step 11:
The number 447 fits into 3330 7 times, leaving a remainder of 201.
Use 7 as the next digit of our solution. 
Result so far: 47335.617
The remainder is 201 after subtracting 3129 from 3330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Moving on to step 12:
447 goes into 2010 4 times with a remainder of 222.
Record the quotient 4 as the next digit in the result. 
Result so far: 47335.6174
Subtracting 1788 from 2010 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Advancing to step 13:
If we divide 2220 by 447, we get 4 and a remainder of 432.
Write down 4 as next digit of the result. 
Result so far: 47335.61744
Subtracting 1788 from 2220 leaves us with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

After the division, we end up with 47335.61744 and a remainder of 0.000432.