How do you write 310,763,136. in word form

Three hundred and ten housand, seven hundred and sixty three, one hundred and thirty six

Break the number down into sections:

310,000,000
'Three hundred and ten million'

763,000
'Seven hundred and sixty three thousand'

136
'One hundred and thirty six'

Three hundred and ten million, seven hundred and sixty three thousand, one hundred and thirty six.

Set up a system of equations