painstakingly
doing something so slow and careful it feels like you're doing it for your grandpa’s funeral.
I painstakingly chose which sock to wear. It was a war between the blue one and the gray one.
She painstakingly picked each candy out of the bag. One wrong move and the whole thing would collapse.
He painstakingly cleaned his keyboard. There was no way he was going to type with chocolate residue on it.