To write 2,380,000 in words, you would write "two million three hundred eighty thousand." This is because each group of three digits in a number represents a place value - millions, thousands, and ones. So, 2,380,000 would be read as "two million, three hundred eighty thousand."
Two million two.
10 000 000+2 000 000+200 000+3000+40
In scientific notation 2,000,000 is 2.0*10^6
The number 380 (three hundred and eighty) is best kept in this format, but it can be written as the fraction 380/1 (three hundred and eighty over one). This could be useful for proportional problems (such as 'multiply 380 by 2/5).
2 583 800 000