Let's divide 21471421 by 260
Our goal is to divide 21471421 by 260.

Step 1:
2 divided by 260 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
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 / 260

Advancing to step 2:
If we divide 21 by 260, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 260

Going ahead to step 3:
260 goes into 214 0 times with a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 214, we get 214.
Bring next digit (7) of the dividend behind the 214 and repeat the process: 2147 / 260

Step 4:
When dividing 2147 by 260, we get 8 with a remainder of 67.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 2080 from 2147 leaves us with 67.
Bring next digit (1) of the dividend behind the 67 and repeat the process: 671 / 260

Moving on to step 5:
The number 260 fits into 671 2 times, leaving a remainder of 151.
Use 2 as the next digit of our solution. 
Result so far: 82.0
The remainder is 151 after subtracting 520 from 671.
Append the next digit (4) from the dividend to 151 and continue with: 1514 / 260

Going ahead to step 6:
1514 divided by 260 is 5 with a remainder of 214.
The number 5 becomes the next digit in our result. 
Result so far: 825.0
The remainder is 214 after subtracting 1300 from 1514.
Bring next digit (2) of the dividend behind the 214 and repeat the process: 2142 / 260

Advancing to step 7:
260 goes into 2142 8 times with a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 8258.0
Subtract 2080 from 2142 to get 62.
Take the next digit (1) from the dividend and append it to 62, then repeat: 621 / 260

Moving on to step 8:
260 can be fit into 621 2 times, resulting in a remainder of 101.
The number 2 becomes the next digit in our result. 
Result so far: 82582.0
Deduct 520 from 621 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Moving on to step 9:
260 can be fit into 1010 3 times, resulting in a remainder of 230.
Write down 3 as next digit of the result. 
Result so far: 82582.3
The remainder is 230 after subtracting 780 from 1010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 10:
260 can be fit into 2300 8 times, resulting in a remainder of 220.
Write down 8 as next digit of the result. 
Result so far: 82582.38
The remainder is 220 after subtracting 2080 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 11:
If we divide 2200 by 260, we get 8 and a remainder of 120.
Record the quotient 8 as the next digit in the result. 
Result so far: 82582.388
Subtract 2080 from 2200 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final outcome is 82582.388, with a leftover of 0.012.