There is such a long delay after you push a button that as a calculator it’s unusable. Unless you are grandma that has to hunt and peck for numbers and type at a speed of 60 characters per minute, you will do long division faster than using this calculator.
Thank you very much for your feedback. We're extremely sorry for any inconvenience this may have caused you. Due to the limitations of the iOS system, the widget currently doesn't support quick clicks. We will continue to pay attention to this aspect of the user experience. If you have any relevant suggestions, please feel free to contact us at feedback@md.studio. Thank you!