300000=CCC with horizontal bar above it
90000=XC with horizontal bar above it
8000=VMMM with horizontal bar above V only
700=DCC
50=L
8=VIII
Therefore
............._______
398758=CCCXCVMMMDCCLVIII
here you go.In roman`s numberals its looks like this X-10 and XI-11
40032
1607
1736
CLXXXIX
MCMLXXXXII
2000 = MM
20 = XX
11
50
2101 = MMCI
It is: 5 = V