Simple coded math made complex

Supply the digits from 0-9 to decode the given problem.

seven+seven+seven+seven+seven+seven+seve

n+seven+seven+seven+
three+three+three+three+nine+nine=hundred

10 times seven,

4 times three
2 times nine


...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
...SEVEN
..THREE
..THREE
..THREE
..THREE
...NINE
...NINE

............

HUNDRED

..87375
..87375
..87375
..87375
..87375
..87375
..87375
..87375
..87375
..87375
..41977
..41977
..41977
..41977
...5657
...5657
----------
1052972

Here
H=1,
D=2
V=3
T=4
N=5
I=6
E=7
S=8
R=9
U=0


Pls check if correct.
I=6