Explanation

The pattern observed in converting the names to numbers suggests the following:

For Ahmed:

A = 0

H = 2

M = 1

E = 3

D = 4

For Zeshan:

Z = 5

E = 6

S = 7

H = 8

A = 9

N = 0

Applying the same pattern to Hamza:

H = 7

A = 8

M = 1

Z = 5

A = 8

Therefore, Hamza corresponds to 78185.