INPUT "vvedite chislo ", n&
m& = n&
DIM a(10)
DO
k = m& MOD 10
a(k) = a(k) + 1
m& = m& \ 10
LOOP UNTIL m& = 0
max = 0
FOR i = 0 TO 9
IF a(i) > max THEN max = a(i): c = i
NEXT
PRINT " iskomaya cifra="; c
PRINT "pozicii:"
DO
k = n& MOD 10
t = t + 1
IF k = c THEN PRINT t;
n& = n& \ 10
LOOP UNTIL n& = 0
Тестирование выполнено в программе QB64 ( Скачать )