How to find the biggest value in an array while saving in a variable the position of where the biggest value of the array is stored?

Question

I'm trying to find the biggest number in the array while finding out what position is that value.

For example lets say the array is dicevalues=[1,2,0,12]

I'd want the output to be: The largest value is 12 in position 3

I've tried

dicevaules=[1,2,0,12]
largest-value = max(array, key=lambda x: x)
print(largest-value)

But this doesn't tell me which position of the array is the largest value.