find the square root of decimals 20.5209 by division method

2 answers

7.96
not even close

since 7.96^2 = 63.3616 and not 20.5209

Hard to show the method on this format, google something like
"how to find square root the formal way"

here is one of the results, look a bit down the page
for "long division method"

geeksforgeeks.org/how-to-find-square-roots-without-a-calculator/