def repeatedString(s, n):
dm = divmod(n, len(s))
c1 = s.count("a") * dm[0]
c2 = s[:dm[1]].count("a")
return c1 + c2
print(repeatedString('abc',11234567890987654321))
ZGVmIHJlcGVhdGVkU3RyaW5nKHMsIG4pOgogIGRtID0gZGl2bW9kKG4sIGxlbihzKSkKICBjMSA9IHMuY291bnQoImEiKSAqIGRtWzBdCiAgYzIgPSBzWzpkbVsxXV0uY291bnQoImEiKQogIHJldHVybiBjMSArIGMyCgpwcmludChyZXBlYXRlZFN0cmluZygnYWJjJywxMTIzNDU2Nzg5MDk4NzY1NDMyMSkp