expression, godan verb (-ru)
even a poor marksman will hit the target with enough shots; persistence can lead to accidental success
Proverb meaning that even someone unskilled can succeed by chance if they try many times. Often used to encourage persistence. The literal image is of a bad shooter who eventually hits the target by firing enough bullets.
See also: 下手な鉄砲も数撃てば当たる
They say even a poor marksman hits the target with enough shots, so let's just apply anyway.
下手な鉄砲も数撃ちゃ当たるで、何度も挑戦すればいつか成功するかもしれない。
As the saying goes, even a bad shooter can hit the target with enough tries; if you keep challenging yourself, you might succeed someday.