Here is the answer to the puzzle from the reel, with the working explained below.

Question 1

Where is 7826 in the grid?

Correct answer: row 4, column 3

Count rows from the top and columns from the left, starting at 1. The number 7826 appears once, at row 4, column 3. The highlighted cell below shows its exact position.

The marked solution

75269822782268217852
75265826782078293826
75269826762678297326
78065826782678257626
72247823780678237426
75267996782078767726
18267626782128267126
78761426782878861826
72267886702378366826
40267806701678257026