We divide 782769 by 21
Let's see how many times 21 fits into 782769.

Step 1:
7 divided by 21 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 21

Let's proceed to step 2:
78 divided by 21 is 3 with a remainder of 15.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 63 from 78, we get 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 21

Going ahead to step 3:
When dividing 152 by 21, we get 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 37.0
If we subtract 147 from 152, we get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 21

Moving on to step 4:
21 goes into 57 2 times with a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 372.0
Deduct 42 from 57 and we're left with 15.
Take the next digit (6) from the dividend and append it to 15, then repeat: 156 / 21

Going ahead to step 5:
21 can be fit into 156 7 times, resulting in a remainder of 9.
The next digit of our result is 7. 
Result so far: 3727.0
If we take 147 away from 156, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 21

Let's proceed to step 6:
The number 21 fits into 99 4 times, leaving a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 37274.0
Subtract 84 from 99 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
If we divide 150 by 21, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 37274.7
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
21 goes into 30 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 37274.71
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 37274.714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 10:
If we divide 60 by 21, we get 2 and a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 37274.7142
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 11:
The number 21 fits into 180 8 times, leaving a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 37274.71428
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
120 divided by 21 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 37274.714285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 13:
When dividing 150 by 21, we get 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 37274.7142857
If we take 147 away from 150, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 14:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 37274.71428571
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

After the division, we end up with 37274.71428571 and a remainder of 9e-09.