then try to restore the (not so clever) text below, coded by simple substitution:
7811$ 721$ , 7211$ 78 ; 6384 51$
50 5298 7$ 705381 3078 .
rem1: You can go top down or bottom up.
rem2: Analytical approach preferred.
Going bottom up, the message is
"MERRY MARY, MARRY ME; THEN TRY TO TAKE MY MOTHER HOME."
Or at least it would be, if 6384 in the not so clever text were 5384. That's correction 1.
Then THINK*NOT = 53649*405 = 21727845 = ARMAMENT
The Alphametic in the problem as given is impossible in base 10, as it has 11 different characters. But it all works out if the S is removed.