In a painstaking manner; very slowly and carefully.(adverb)
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Use "painstakingly" in a sentence
"Nin painstakingly copied into her diary her worst review, from among many bad reviews, by Elizabeth Hardwick, no less, who declared ‘no writer I can think of has more passionately embraced thin air’ and described her work as ‘vague, dreamy, mercilessly pretentious’."
"The man grimaces, but he signs his name painstakingly, gripping the stand."
"She read the titles painstakingly: "Corn in California," "Silage"