We look at the division of 277456 by 21 
We want to divide 277456 by 21.

Step 1:
21 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 21

Advancing to step 2:
The number 21 fits into 27 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
If we take 21 away from 27, we end up with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 21

Step 3:
21 can be fit into 67 3 times, resulting in a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 63 from 67 and we're left with 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 21

Moving on to step 4:
The number 21 fits into 44 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 132.0
If we take 42 away from 44, we end up with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 21

Let's proceed to step 5:
21 can be fit into 25 1 times, resulting in a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1321.0
The remainder is 4 after subtracting 21 from 25.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 21

Going ahead to step 6:
21 goes into 46 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 13212.0
If we subtract 42 from 46, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
If we divide 40 by 21, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 13212.1
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 8:
190 divided by 21 is 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 13212.19
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
10 divided by 21 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 13212.19
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 21, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 13212.1904
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 13212.19047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 12:
130 divided by 21 is 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 13212.190476
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
If we divide 40 by 21, we get 1 and a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 13212.1904761
If we subtract 21 from 40, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 14:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 13212.19047619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The quotient of the division is 13212.19047619, and the remainder is 1e-09.