I gave it a try...

def divide(x):
y = 10
c =0
sign=0
if(x<0):
        x=-(x)
        sign^=1
    if(y<0):
        y=-(y)
        sign^=1
    if(y!=0):
        while(x>=y):
        x=(x - y)
        c +=1
if(sign):
    c=(c)
return c

print divide(1500)

def davasaan(x):
global y
y = list(divmod(x,10))
return y[0]

Both works but not accepted in this task -.-