Explain how a calculator shows the remainder when you divide 145by8

Well to start off, there is no remainder because... let me explain

8/145
on the top there will first be a one. Then u subtract 8 from 14 and get six. Bring down the five and you get sixty five. you put an eight on the top then a 64 under the 65 and when you subtract you get one. You have no more numbers to bring down, so u put a decimal next to the 5 in 145 and add a zero. it would look like this... 145.0 . then you also have to put the decimal on the top. The calculator though, does all of it for you which gets you the answer of 18.125.

The calculator would most likely write it in  decimal form which is 18.125 instead of the remainder which would be 18 R1 or the fraction which would be 18 1/8