How many zeroes are in your billion. The US uses 9, the UK and Ireland use 12
750 divided by 150 = 5
1 billion divided by 1 million = either 1 million, or, 1 thousand.
So the answer depends on your billion.
For a US billion, the answer is 5 thousand
For the other, the answer is 5 million.
Let's use numbers
750,000,000,000 ÷ 150,000,000 = 5,000
or
750,000,000,000,000 ÷ 150,000,000 = 5,000,000
3.5211
3.75
0.75
3.3186
5
2.0548
0.75
0.75
0.002
750
150
750