We're dividing 1260976 by 421 
Let's see how many times 421 fits into 1260976.

Step 1:
When dividing 1 by 421, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 421

Let's proceed to step 2:
421 goes into 12 0 times with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 421

Moving on to step 3:
421 goes into 126 0 times with a remainder of 126.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 126, we get 126.
Take the next digit (0) from the dividend and append it to 126, then repeat: 1260 / 421

On to step 4:
If we divide 1260 by 421, we get 2 and a remainder of 418.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 842 from 1260, we get 418.
Take the next digit (9) from the dividend and append it to 418, then repeat: 4189 / 421

Advancing to step 5:
The number 421 fits into 4189 9 times, leaving a remainder of 400.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
If we subtract 3789 from 4189, we get 400.
Take the next digit (7) from the dividend and append it to 400, then repeat: 4007 / 421

Step 6:
If we divide 4007 by 421, we get 9 and a remainder of 218.
Record the quotient 9 as the next digit in the result. 
Result so far: 299.0
If we take 3789 away from 4007, we end up with 218.
Take the next digit (6) from the dividend and append it to 218, then repeat: 2186 / 421

Going ahead to step 7:
421 can be fit into 2186 5 times, resulting in a remainder of 81.
Use 5 as the next digit of our solution. 
Result so far: 2995.0
Subtracting 2105 from 2186 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 8:
When dividing 810 by 421, we get 1 with a remainder of 389.
Put 1 as the next digit of the answer. 
Result so far: 2995.1
Deduct 421 from 810 and we're left with 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

On to step 9:
When dividing 3890 by 421, we get 9 with a remainder of 101.
Use 9 as the next digit of our solution. 
Result so far: 2995.19
The remainder is 101 after subtracting 3789 from 3890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Let's proceed to step 10:
The number 421 fits into 1010 2 times, leaving a remainder of 168.
The next digit of our result is 2. 
Result so far: 2995.192
Deduct 842 from 1010 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 11:
The number 421 fits into 1680 3 times, leaving a remainder of 417.
The next digit of our result is 3. 
Result so far: 2995.1923
Subtracting 1263 from 1680 leaves us with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Let's proceed to step 12:
4170 divided by 421 is 9 with a remainder of 381.
Put 9 as the next digit of the answer. 
Result so far: 2995.19239
If we subtract 3789 from 4170, we get 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Let's proceed to step 13:
When dividing 3810 by 421, we get 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 2995.192399
Subtract 3789 from 3810 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final result is 2995.192399 with a remainder of 2.1e-06.