We look at the division of 777873 by 39 
Let's see how many times 39 fits into 777873.

On to step 1:
If we divide 7 by 39, we get 0 and 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.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 39

Step 2:
39 goes into 77 1 times with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 39 away from 77, we end up with 38.
Include the next digit (7) from the dividend after 38, then repeat: 387 / 39

Moving on to step 3:
If we divide 387 by 39, we get 9 and a remainder of 36.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtracting 351 from 387 leaves us with 36.
Include the next digit (8) from the dividend after 36, then repeat: 368 / 39

Advancing to step 4:
39 goes into 368 9 times with a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 199.0
Subtract 351 from 368 to get 17.
Take the next digit (7) from the dividend and append it to 17, then repeat: 177 / 39

On to step 5:
39 goes into 177 4 times with a remainder of 21.
Record the quotient 4 as the next digit in the result. 
Result so far: 1994.0
Deduct 156 from 177 and we're left with 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 39

Step 6:
213 divided by 39 is 5 with a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 19945.0
Subtracting 195 from 213 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.

Moving on to step 7:
39 can be fit into 180 4 times, resulting in a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 19945.4
Subtracting 156 from 180 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
If we divide 240 by 39, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 19945.46
If we take 234 away from 240, we end up 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.

On to step 9:
The number 39 fits into 60 1 times, leaving a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 19945.461
If we take 39 away from 60, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 10:
39 can be fit into 210 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 19945.4615
Subtracting 195 from 210 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.

On to step 11:
If we divide 150 by 39, we get 3 and a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 19945.46153
If we subtract 117 from 150, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 12:
If we divide 330 by 39, we get 8 and a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 19945.461538
If we subtract 312 from 330, we get 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 13:
39 goes into 180 4 times with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 19945.4615384
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 14:
When dividing 240 by 39, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 19945.46153846
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

In conclusion, the division gives 19945.46153846 with a balance of 6e-09.