If you've had no experience with "alphametics",
. . no wonder you're having difficulty.
You should be able to see that
(If you can't, these problems are not for you.)
In column-3, we see that ends in
Then there are two possible cases:
. . (1)
. . (2) with a "carry" from column-4.
We have: .
In column-6, with no carry.
In column-5: . ends in with a carry.
. . Hence:
In column-4: . with no carry.
In column-2: .
In column-6, let
. . Then
We have found one solution: .
There may be other solutions.