The numbers from 5 to 85 that are exactly divisible by 5 are:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85
Total count: (85−5)÷5+1=17 numbers
Arranging in descending order:
85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5
Counting from the bottom (starting from 5):
1st from bottom: 5
2nd from bottom: 10
3rd from bottom: 15
4th from bottom: 20
5th from bottom: 25
6th from bottom: 30
7th from bottom: 35
8th from bottom: 40
9th from bottom: 45
10th from bottom: 50
11th from bottom: 55
Therefore, the number at the eleventh place from the bottom is 55.