Let's divide 21372009 by 777
Our goal is to divide 21372009 by 777.

Advancing to step 1:
2 divided by 777 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 777

Let's proceed to step 2:
777 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 777

Advancing to step 3:
777 goes into 213 0 times with a remainder of 213.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 213 after subtracting 0 from 213.
Grab the next digit (7) from the dividend, add it to 213, then carry on: 2137 / 777

Advancing to step 4:
When dividing 2137 by 777, we get 2 with a remainder of 583.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1554 from 2137 to get 583.
Include the next digit (2) from the dividend after 583, then repeat: 5832 / 777

On to step 5:
777 goes into 5832 7 times with a remainder of 393.
Use 7 as the next digit of our solution. 
Result so far: 27.0
The remainder is 393 after subtracting 5439 from 5832.
Grab the next digit (0) from the dividend, add it to 393, then carry on: 3930 / 777

Step 6:
The number 777 fits into 3930 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 275.0
The remainder is 45 after subtracting 3885 from 3930.
Take the next digit (0) from the dividend and append it to 45, then repeat: 450 / 777

Going ahead to step 7:
777 can be fit into 450 0 times, resulting in a remainder of 450.
Record the quotient 0 as the next digit in the result. 
Result so far: 2750.0
Subtracting 0 from 450 leaves us with 450.
Fetch the next digit (9) from the dividend, attach it to 450 and continue: 4509 / 777

On to step 8:
If we divide 4509 by 777, we get 5 and a remainder of 624.
The number 5 becomes the next digit in our result. 
Result so far: 27505.0
Subtract 3885 from 4509 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Let's proceed to step 9:
When dividing 6240 by 777, we get 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 27505.8
Subtracting 6216 from 6240 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
240 divided by 777 is 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 27505.8
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 11:
777 goes into 2400 3 times with a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 27505.803
The remainder is 69 after subtracting 2331 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 12:
The number 777 fits into 690 0 times, leaving a remainder of 690.
Write down 0 as next digit of the result. 
Result so far: 27505.803
Subtract 0 from 690 to get 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Let's proceed to step 13:
777 goes into 6900 8 times with a remainder of 684.
The number 8 becomes the next digit in our result. 
Result so far: 27505.80308
Subtract 6216 from 6900 to get 684.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

Advancing to step 14:
777 can be fit into 6840 8 times, resulting in a remainder of 624.
Put 8 as the next digit of the answer. 
Result so far: 27505.803088
If we subtract 6216 from 6840, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

After the division, we end up with 27505.803088 and a remainder of 6.24e-05.