We're dividing 779133 by 21 
We want to figure out the number of times 779133 can be divided by 21.

Let's proceed to step 1:
21 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 21

On to step 2:
21 can be fit into 77 3 times, resulting in a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 63 away from 77, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 21

Advancing to step 3:
When dividing 149 by 21, we get 7 with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Subtract 147 from 149 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 21

Moving on to step 4:
The number 21 fits into 21 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 371.0
If we subtract 21 from 21, we get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 21

On to step 5:
When dividing 3 by 21, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 3710.0
Subtract 0 from 3 to get 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 21

Moving on to step 6:
21 goes into 33 1 times with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 37101.0
Subtracting 21 from 33 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
If we divide 120 by 21, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 37101.5
Subtract 105 from 120 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.

Let's proceed to step 8:
150 divided by 21 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 37101.57
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 9:
If we divide 30 by 21, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 37101.571
Deduct 21 from 30 and we're left 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.

Advancing to step 10:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 37101.5714
Deduct 84 from 90 and we're left 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.

Step 11:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 37101.57142
Subtracting 42 from 60 leaves us 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.

On to step 12:
If we divide 180 by 21, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 37101.571428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 37101.5714285
If we subtract 105 from 120, we 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.

Let's proceed to step 14:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The next digit of our result is 7. 
Result so far: 37101.57142857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

After the division, we end up with 37101.57142857 and a remainder of 3e-09.