So I would start off with the brackets.
[(12^2×23)(98×2)]
[(3312)(196)]
(3312×196)=649152
Start with the first parenthesis.
3499/13=269.2 (rounded to tenths)
The second parenthesis.
12/3=4
Put it together
269.2×4+649,152
multiplication first
1076.8+649,152
650,228.8 is the answer.