Calculation of Total Marks:
To find the total marks, we need to determine the percentage that 98% represents in relation to the total marks.

Step 1: Let's assume the total marks as 'x'.

Step 2: We know that Malavika scored 98% marks in her exam, which means she obtained 98% of the total marks.

Step 3: We can express this as an equation: 98% of x = 56% of x.

Step 4: To solve this equation, we need to eliminate the percentage sign. We can do this by dividing both sides of the equation by 100.

Step 5: Simplifying the equation further, we get: (98/100) * x = (56/100) * x.

Step 6: Now, we can cancel out the 'x' terms on both sides of the equation.

Step 7: Simplifying the equation further, we get: 0.98 * x = 0.56 * x.

Step 8: Dividing both sides of the equation by 0.56, we obtain: x = (0.56 * x) / 0.98.

Step 9: Cancelling out the 'x' terms, we get: 1 = 0.56 / 0.98.

Step 10: Evaluating the right-hand side of the equation, we find: 1 = 0.571.

Step 11: Since the equation is not balanced, we can conclude that there is no solution for 'x'.

Conclusion:
Based on the given information, it is not possible to determine the total marks. The equation does not have a valid solution.