>what do i just choose a random memory location
Something like that. You declare enough space.
>Can you demonstate this Narue please.
Oh, very well. This is FASM though, I don't have A86:
format MZ
org 100h
jmp start
save db 4 dup '$'
start:
mov ax,123
mov bx,10
mov di,2
convert:
mov dx,0
div bx
add dx,'0'
mov [save+di],dl
dec di
test ax,ax
jnz convert
; Display the result
mov ah,09h
mov dx,save
int 21h
; Finish up
mov ah,4Ch
mov al,0
int 21h