Please help explain how to get answer!

-8.6*14.6-5.3/[(-19.4)-8.6]/(-2.9)*6.3-(-9.5)

as written, it goes like this:

-8.6*14.6-5.3/[(-19.4)-8.6]/(-2.9)*6.3-(-9.5)
-8.6*14.6-5.3/[-28.0]/(-2.9)*6.3+9.5
-8.6*14.6-5.3/-28.0/(-2.9)*6.3+9.5

That takes care of the parentheses. Now the multiply/divides:

-125.56+.190/-2.9*6.3+9.5
-125.56-.065*6.4+9.5
-125.56-.417+9.5

Now the add/subtracts:

-116.47