.8086

cseg segment
    assume cs:cseg
    org 100h
start:
    mov ax, 12345
    mov cx, 10
    mov di, offset digit
    call WToAscii
    mov [di], byte ptr 0Dh
    inc di
    mov [di], byte ptr 0Ah
    inc di
    mov [di], byte ptr '$'
    mov dx, offset digit
    mov ah, 9h
    int 21h
    mov ah, 4ch
    int 21h
WToAscii proc near
    xor dx, dx
    div cx
    or ax, ax
    jz done
    push dx
    call WToAscii
    pop dx
done:
    mov al, dl
    or al, '0'
    mov [di], al
    inc di
    ret
WToAscii endp

digit BYTE 10 dup(?)
cseg ends
end start