We look at the division of 21229673 by 485 
Let's see how many times 485 fits into 21229673.

Step 1:
If we divide 2 by 485, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 485

Let's proceed to step 2:
If we divide 21 by 485, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 485

Let's proceed to step 3:
If we divide 212 by 485, we get 0 and a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Take the next digit (2) from the dividend and append it to 212, then repeat: 2122 / 485

Step 4:
2122 divided by 485 is 4 with a remainder of 182.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 182 after subtracting 1940 from 2122.
Take the next digit (9) from the dividend and append it to 182, then repeat: 1829 / 485

Advancing to step 5:
When dividing 1829 by 485, we get 3 with a remainder of 374.
The next digit of our result is 3. 
Result so far: 43.0
Deduct 1455 from 1829 and we're left with 374.
Bring next digit (6) of the dividend behind the 374 and repeat the process: 3746 / 485

Going ahead to step 6:
If we divide 3746 by 485, we get 7 and a remainder of 351.
Use 7 as the next digit of our solution. 
Result so far: 437.0
If we take 3395 away from 3746, we end up with 351.
Take the next digit (7) from the dividend and append it to 351, then repeat: 3517 / 485

On to step 7:
If we divide 3517 by 485, we get 7 and a remainder of 122.
The number 7 becomes the next digit in our result. 
Result so far: 4377.0
Subtracting 3395 from 3517 leaves us with 122.
Append the next digit (3) from the dividend to 122 and continue with: 1223 / 485

Advancing to step 8:
485 goes into 1223 2 times with a remainder of 253.
Use 2 as the next digit of our solution. 
Result so far: 43772.0
If we take 970 away from 1223, we end up with 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Advancing to step 9:
The number 485 fits into 2530 5 times, leaving a remainder of 105.
The next digit of our result is 5. 
Result so far: 43772.5
If we subtract 2425 from 2530, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 10:
485 can be fit into 1050 2 times, resulting in a remainder of 80.
The next digit of our result is 2. 
Result so far: 43772.52
Subtracting 970 from 1050 leaves us 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.

Step 11:
485 can be fit into 800 1 times, resulting in a remainder of 315.
Write down 1 as next digit of the result. 
Result so far: 43772.521
If we take 485 away from 800, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

On to step 12:
3150 divided by 485 is 6 with a remainder of 240.
The number 6 becomes the next digit in our result. 
Result so far: 43772.5216
Subtract 2910 from 3150 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 13:
The number 485 fits into 2400 4 times, leaving a remainder of 460.
Use 4 as the next digit of our solution. 
Result so far: 43772.52164
The remainder is 460 after subtracting 1940 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 14:
The number 485 fits into 4600 9 times, leaving a remainder of 235.
The number 9 becomes the next digit in our result. 
Result so far: 43772.521649
The remainder is 235 after subtracting 4365 from 4600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 15:
The number 485 fits into 2350 4 times, leaving a remainder of 410.
The number 4 becomes the next digit in our result. 
Result so far: 43772.5216494
If we subtract 1940 from 2350, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 16:
485 can be fit into 4100 8 times, resulting in a remainder of 220.
Record the quotient 8 as the next digit in the result. 
Result so far: 43772.52164948
If we take 3880 away from 4100, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

In conclusion, the division gives 43772.52164948 with a balance of 2.2e-07.