Answer:
634538
Explanation:
Add 4+2 since in the rest of the columns, we have to add 0 to all of the rest of the numbers.
4+2=6
0+(3, 4, 5, 3, and 8 will equal the same thing)
0+3=3
0+4=4
And so on.
400000
+ 234538
_______
634538
I hope this has helped!