9 grabber attempts

Idols there’s 11 of 36 spaces that would yield some amount of coins (10 would give 90, 11th gives 900). Therefore it’s an 11/36 chance, or about 30.5%

There’s a little over a 4% chance of this happening, or around the same odds of rolling a 1 on a 25 sided dice! You’re certainly unlucky but a feasible amount.