What does this Assembly snippet output?

1.global _main
2.align 2
3_main:
4    stp x29, x30, [sp, #-32]!
5    mov w8, #1234
6    mov w9, #0
7rev_loop:
8    cbz w8, rev_done
9    mov w10, #10
10    udiv w11, w8, w10
11    mul w12, w11, w10
12    sub w12, w8, w12
13    mov w10, #10
14    mul w9, w9, w10
15    add w9, w9, w12
16    mov w8, w11
17    b rev_loop
18rev_done:
19    sub sp, sp, #16
20    str x9, [sp]
21    adrp x0, fmt@PAGE
22    add x0, x0, fmt@PAGEOFF
23    bl _printf
24    add sp, sp, #16
25    ldp x29, x30, [sp], #32
26    mov w0, #0
27    ret
28.section __TEXT,__cstring
29fmt: .asciz "%d\n"