70,000 divided by 7,000

70,000 has 4 zeros

7,000 has 3 zeros

Both have the number 7, so 7 x 1 = 7, the first number must be 1

Since there are 4 zeros in 70,000 and 3 zeros in 7,000

4 - 3 = 1

We know the first number in the answer is 1, 4 zeros minus 3 zeros = 1 zero

10