1/3 * 7780.50 = 7780.50 / 3
You divide the 1st digit with 3, take the leftover, multiply it by 10 and add it to the second digit.
Then you divide this number by 3, take the leftover, multiply by 10 and add it to the third digit...
7/3 = 2 and 1 left, 1*10=10, and 10+7=17
17/3 = 5 and 2 left, 2*10=20, and 20+8=28
28/3 = 9 and 1 left, 1*10=10, and 10+0=10
10/3 = 3 and 1 left, 1*10=10, and 10+5=15
15 / 3 = 5 and 0 left
0 / 3 = 0 and 0 left.
Read the numbers from top to bottom: 2593.50