Guys I'm serious if I don't get my math review done right now like my brother will kill me so please can you guys find the answer of a long division problem that has an answer of three remainder 12

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

That is what i got (fgx) hope this