The remainder when is divided by 9 is 0.
First, to find the remainder if there is a number which is being divided by 10, then we can say that the remainder is just the last digit of that number. Similarly, if we divide any number by 9 , we will add each digits until we are left with one number which is called as Remainder.
Now we will solve it accordingly,
[tex]\\\dfrac{670592745}{9}=74510305 \rm \;that \;means \;we \; will \;get\; 0\;as \;Remainder.[/tex]
As we can see that its get divided by 9 so we get Remainder as ZERO.
Therefore, the remainder when 12345 × 54321 is divided by 9 will be 0.
Learn more about Remainder here :https://brainly.com/question/10534364