779100 divided by 21 
We want to divide 779100 by 21.

Advancing to step 1:
The number 21 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 21

Going ahead to step 2:
21 can be fit into 77 3 times, resulting in a remainder of 14.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 63 from 77, we get 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 21

Going ahead to step 3:
The number 21 fits into 149 7 times, leaving a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 147 from 149 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 21

Let's proceed to step 4:
The number 21 fits into 21 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 371.0
Subtract 21 from 21 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 21

Advancing to step 5:
When dividing 0 by 21, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3710.0
If we subtract 0 from 0, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 21

On to step 6:
0 divided by 21 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 37100.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
The number 21 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 37100.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
When dividing 0 by 21, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 37100.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 37100.0 with a remaining 0.0.