We're dividing 774843 by 15 
Let's see how many times 15 fits into 774843.

Going ahead to step 1:
7 divided by 15 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 15

On to step 2:
15 goes into 77 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 75 from 77 to get 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 15

Let's proceed to step 3:
24 divided by 15 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtract 15 from 24 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 15

On to step 4:
15 can be fit into 98 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 516.0
Subtract 90 from 98 to get 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 15

Moving on to step 5:
When dividing 84 by 15, we get 5 with a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 5165.0
If we subtract 75 from 84, we get 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 15

Let's proceed to step 6:
If we divide 93 by 15, we get 6 and a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 51656.0
If we take 90 away from 93, 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.

Step 7:
If we divide 30 by 15, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 51656.2
Subtracting 30 from 30 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.

Advancing to step 8:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 51656.2
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.

Going ahead to step 9:
15 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 51656.2
If we take 0 away from 0, we end up 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.

The final outcome is 51656.2, with a leftover of 0.0.