division a number and print reminder in Assembly language

.model small
.stack 100h
.code
start:
mov ah,1h ; User input 1
int 21h
sub al,30h ; ascii to Hexa

mov bh,al

mov ah,1h ; User input 2
int 21h
sub al,30h; ascii to Hexa

mov ah,0 ;change ah value as 0
div bh

mov dl,al
add dl,30h ; Hexa to ascii

mov bl,ah

mov ah,2h ;print
int 21h

mov dl,bl
add dl,30h ; Hexa to ascii

mov ah,2h ;print
int 21h

mov ah,4ch ;terminate code
int 21h
end start