Let's divide 21921280 by 351
Our goal is to divide 21921280 by 351.

Step 1:
If we divide 2 by 351, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 351

On to step 2:
When dividing 21 by 351, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 351

Let's proceed to step 3:
351 goes into 219 0 times with a remainder of 219.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 219 leaves us with 219.
Include the next digit (2) from the dividend after 219, then repeat: 2192 / 351

On to step 4:
351 goes into 2192 6 times with a remainder of 86.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 2106 from 2192 to get 86.
Append the next digit (1) from the dividend to 86 and continue with: 861 / 351

Let's proceed to step 5:
351 can be fit into 861 2 times, resulting in a remainder of 159.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
Deduct 702 from 861 and we're left with 159.
Bring next digit (2) of the dividend behind the 159 and repeat the process: 1592 / 351

Going ahead to step 6:
If we divide 1592 by 351, we get 4 and a remainder of 188.
Put 4 as the next digit of the answer. 
Result so far: 624.0
Subtract 1404 from 1592 to get 188.
Take the next digit (8) from the dividend and append it to 188, then repeat: 1888 / 351

On to step 7:
If we divide 1888 by 351, we get 5 and a remainder of 133.
Put 5 as the next digit of the answer. 
Result so far: 6245.0
Subtracting 1755 from 1888 leaves us with 133.
Take the next digit (0) from the dividend and append it to 133, then repeat: 1330 / 351

Let's proceed to step 8:
351 goes into 1330 3 times with a remainder of 277.
The next digit of our result is 3. 
Result so far: 62453.0
Subtracting 1053 from 1330 leaves us with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Advancing to step 9:
2770 divided by 351 is 7 with a remainder of 313.
Write down 7 as next digit of the result. 
Result so far: 62453.7
Subtract 2457 from 2770 to get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Moving on to step 10:
351 goes into 3130 8 times with a remainder of 322.
Write down 8 as next digit of the result. 
Result so far: 62453.78
If we take 2808 away from 3130, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 11:
If we divide 3220 by 351, we get 9 and a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 62453.789
If we subtract 3159 from 3220, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 12:
The number 351 fits into 610 1 times, leaving a remainder of 259.
Put 1 as the next digit of the answer. 
Result so far: 62453.7891
If we subtract 351 from 610, we get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Advancing to step 13:
The number 351 fits into 2590 7 times, leaving a remainder of 133.
The number 7 becomes the next digit in our result. 
Result so far: 62453.78917
If we subtract 2457 from 2590, we get 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Let's proceed to step 14:
351 can be fit into 1330 3 times, resulting in a remainder of 277.
Write down 3 as next digit of the result. 
Result so far: 62453.789173
If we subtract 1053 from 1330, we get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Let's proceed to step 15:
When dividing 2770 by 351, we get 7 with a remainder of 313.
Put 7 as the next digit of the answer. 
Result so far: 62453.7891737
If we subtract 2457 from 2770, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Step 16:
If we divide 3130 by 351, we get 8 and a remainder of 322.
Use 8 as the next digit of our solution. 
Result so far: 62453.78917378
If we take 2808 away from 3130, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

After the division, we end up with 62453.78917378 and a remainder of 3.22e-07.