764828 ÷ 21 
We want to divide 764828 by 21.

Let's proceed to step 1:
7 divided by 21 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 21

Advancing to step 2:
If we divide 76 by 21, we get 3 and a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 63 from 76 leaves us with 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 21

Going ahead to step 3:
21 goes into 134 6 times with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we subtract 126 from 134, we get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 21

Step 4:
21 goes into 88 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 364.0
Subtracting 84 from 88 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 21

Let's proceed to step 5:
21 goes into 42 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 3642.0
Subtracting 42 from 42 leaves us with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 21

Let's proceed to step 6:
When dividing 8 by 21, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 36420.0
If we take 0 away from 8, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
If we divide 80 by 21, we get 3 and a remainder of 17.
The next digit of our result is 3. 
Result so far: 36420.3
Subtract 63 from 80 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 8:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 36420.38
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
The number 21 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 36420.38
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 10:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 36420.3809
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 11:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 36420.38095
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 12:
If we divide 50 by 21, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 36420.380952
Deduct 42 from 50 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
If we divide 80 by 21, we get 3 and a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 36420.3809523
Subtract 63 from 80 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 14:
When dividing 170 by 21, we get 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 36420.38095238
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 36420.38095238 with a balance of 2e-09.