775038 ÷ 21 
We want to divide 775038 by 21.

Advancing to step 1:
If we divide 7 by 21, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 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
Subtracting 63 from 77 leaves us with 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 21

Moving on to step 3:
If we divide 145 by 21, we get 6 and a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Deduct 126 from 145 and we're left with 19.
Include the next digit (0) from the dividend after 19, then repeat: 190 / 21

Moving on to step 4:
If we divide 190 by 21, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 369.0
Subtracting 189 from 190 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 21

Step 5:
13 divided by 21 is 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 3690.0
If we subtract 0 from 13, we get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 21

Let's proceed to step 6:
21 can be fit into 138 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 36906.0
Subtracting 126 from 138 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.

Moving on to step 7:
When dividing 120 by 21, we get 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 36906.5
Subtracting 105 from 120 leaves us 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 8:
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: 36906.57
Deduct 147 from 150 and we're left 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.

Moving on to step 9:
21 goes into 30 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 36906.571
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 10:
The number 21 fits into 90 4 times, leaving a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 36906.5714
Subtracting 84 from 90 leaves us 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:
21 goes into 60 2 times with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 36906.57142
Deduct 42 from 60 and we're left 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.

Let's proceed to step 12:
180 divided by 21 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 36906.571428
Subtract 168 from 180 to 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 13:
120 divided by 21 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 36906.5714285
Subtracting 105 from 120 leaves us 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.

Advancing to step 14:
150 divided by 21 is 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 36906.57142857
Subtracting 147 from 150 leaves us 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.

The final result is 36906.57142857 with a remainder of 3e-09.