New Scientist Enigma 494 – Look Blank
by Susan Denham
From Issue #1646, 7th January 1989
In the following long division sum I’ve marked the position of each digit. I can tell you that there were no 1s and no 0s but that all other digits occurred at least twice.
Also (although you don’t actually need this information) all four digits of the answer were different.
What is the six-figure dividend?