692 * 45 + 7 * 438 = 31140 + 3066 = 34206
1) $\snippet{name: column_multiplication, x: 692, y: 45}$;
2) $\snippet{name: column_multiplication, x: 438, y: 7}$;
3) $\snippet{name: op_column, sign: '+', x: '31140', y: '3066', z: '34206'}$.