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

Question 1

Where is 7837 in the grid?

Correct answer: row 6, column 2

Count rows from the top and columns from the left, starting at 1. The number 7837 appears once, at row 6, column 2. The highlighted cell below shows its exact position.

The marked solution

56376836783178397832
18377887786578597827
70307137723777378837
98377817733778477737
85378837786798377867
76877837733778347838
78177337782778357437
38377887483777372837
78679867783868377137
38367839775728377827